After exploring the Zen admin, I could find no way to re-activate a inactive coupon so used the SQL query below.

Copy and the code below and paste it in Tools -> Install SQL Patches. Make sure you change the coupon_id to the number that you would like to re-activate. To get the id number, click on the name in Gift Certificate/Coupons -> Coupon Admin, the id is in the right column, in square brackets before the coupon name. And, as always, BACK UP YOUR DATABASE before making any changes to your Zen Cart installation.

UPDATE `coupons` SET `coupon_active` = 'Y' WHERE `coupons`.`coupon_id` =22 LIMIT 1 ;

1. Go to Configuration -> Email Options
Set “Use MIME HTML When Sending Emails” (3rd line) to true
and
Set “Email Admin Format?” to HTML (line 10)

2. Go to Configuration -> Customer Details
Set “Customer Default Email Preference” (line 10) to 1 for html

3. Upload your store logo, saved as header.jpg to email/ folder on the server (you will be overwriting the default zen cart logo)

4. Language File Changes:
Change the define for EMAIL_FOOTER_COPYRIGHT to link back to your store in:
admin/includes/languages/english/email_extras.php
and
includes/languages/english/email_extras.php

5. The design for each email is defined in style section of the header for each of the following email template file:
email/email_template_checkout.html
email/email_template_contact_us.html
email/email_template_coupon.html
email/email_template_default.html
email/email_template_direct_email.html
email/email_template_gv_mail.html
email/email_template_gv_queue.html
email/email_template_gv_send.html
email/email_template_low_stock.html
email/email_template_newsletters.html
email/email_template_order_status.html
email/email_template_password_forgotten.html
email/email_template_product_notification.html
email/email_template_product_notification.html

Change the css in each file or create a external stylesheet and link to it from the header of each file.

6.You can check your changes in Tools -> Email Welcome of your admin. When you have finalized the design, sign up as a new customer on your web site, you should get a branded email generated from zen cart.

1. First, you must be tracking stock of your products through Zen Cart.

2. Download, includes/template/Your_Templates/tpl_product_info_display.php and open the file.

Copy this code:

<!-- bof limited supply -->
<?php

$limitedSupply_query = "SELECT products_quantity, products_id
FROM " . TABLE_PRODUCTS . "
WHERE products_id = '" . (int)$_GET['products_id'] . "' ";

$limitedSupply = $db->Execute($limitedSupply_query);

if ($limitedSupply->fields['products_quantity'] == 1)  {
echo '<div id="limited">Only one left</div>';
}
?>
<!-- eof limited supply -->

3. Paste the code in the file where you would like the alert message to appear, I usually put it just above the Add to Cart button. Upload the edited file to includes/templates/Your_Template/

4. Download your stylesheet and create and define #limited. Upload the edited stylesheet to includes/templates/Your_Template/css/

5. Find a product on your web site that has only one product. Make any needed changes to the stylesheet.

To make the switch, open:

includes/templates/Your_Template/common/tpl_header.php and look for:

<!–bof-optional categories tabs navigation display–>

<?php get_template_dir(’tpl_modules_categories_tabs.php’,DIR_WS_TEMPLATE, $current_page_base,’templates’). ‘/tpl_modules_categories_tabs.php’); ?>

<!–eof-optional categories tabs navigation display–>

Copy the code, delete it and open:
includes/templates/Your_Template/common/tpl_footer.php

Paste your copied code into the footer file in the appropriate postition.

Upload both of the edited files and turn on your Nav Cat Tabs in the Zen Cart admin by going to:

Configuration -> Layout Settings -> Categories-Tabs Menu ON/OFF and turn the Nav Cat Tabs on.

Go to your web site and see your category links in the footer of each page. Now search engines have easy to read text links for your categories.

Recently, when adding custom meta tags for products I noticed that the custom tags I entered at the product level were followed by the custom tags I had set in the meta_tags.php language file and this created a VERY long list of keywords. As you know, google and other search engines will penalize you for keyword spam if you have too many keywords.

To show only the keywords you set at the product or category level, download the file:
includes/languages/english/meta_tags.php

OR
includes/languages/english/YOUR_CUSTOM_TEMPLATE/meta_tags.php (if the file has already been modified)

Open the file and remove all keywords in the following define:
// Custom Keywords
define(’CUSTOM_KEYWORDS’, ”);

Upload the file to: includes/languages/english/YOUR_CUSTOM_TEMPLATE/

Now, any products or categories that have meta tags defined in the admin section of your web site will use ONLY those tag definitions and you will no longer be keyword spamming.

Here’s how to update the weight of ALL products in your catalog to 1/2 lb:
1. First, ALWAYS do a data base backup. If you have the Database Backup from Admin mod installed go to Tools -> Database Back Up MySQL and back up your database.
2. Go to Tools -> Install SQL Patches and run the following code:
UPDATE products SET products_weight = 0.5;

All products now have the weight of 1/2 lb. If you want the weight to be different, just change the 0.5 to whatever weight you want. The number should be in pounds.

If you have items in your catalog that are down loadable products, they must have a weight of 0. The most common instance of down loadable products is Gift Certificates. To update the weight of all products EXCEPT your gift certificates, enter the following command in step 2:
UPDATE products SET products_weight = 0.5 WHERE master_categories_id != 26;

This will update ALL products weight EXCEPT those in category 26 (gift certificate category). Change the master_categories_id to your actual number.

2. Enter your new Order Status in the field provided and click on the “insert” button.

Now when processing orders, you will have “Shipped” as a Order Status option.

Happy Zen Cart!

1. Create a small graphic that says New or NEW PRODUCT and name it new.gif. Then upload your image to includes/templates/YOUR_CUSTOM_TEMPLATE/images .

2. Open includes/templates/YOUR_CUSTOM_TEMPLATE/css/stylesheet.css at the bottom add the following lines:

.newProduct {
background-image:url(../images/new.gif);
width: Your image width in px;
height: Your image height in px;
}

Make sure you enter your actual image pixel dimensions.

3. Open includes/templates/YOUR_CUSTOM_TEMPLATE/templates/tpl_product_info_display.php and add the following:

$datesql = “select products_date_added from zen_products where products_id = “. (int)$_GET['products_id'] .” “;
$date_display = $db->Execute($datesql);
$newdate = $date_display->fields['products_date_added'];
$newdate2 = $newdate - 30;
function reformatDate($newdate) {
list($year, $month, $day, $hour, $min, $sec) = split( ‘[: -]‘,
$newdate);
return “$year-$month-$day”;
}
$dateA=$newdate;
$theDate=reformatDate($dateA);
$thirty_days_ago = mktime()-2592000;
if ($theDate >= date(’Y-m-d’, $thirty_days_ago)) { echo ‘<div class=”new”>
</div>’; }
?>

You may have to play with the placement of the code to get the image in the correct place.

Your products will display the new.gif icon you created for 30 days!

1. Log in to your Zen Cart admin
2. Go to “Modules -> Order Total”

3. Click on “Shipping”, default installation 6th line. See screen shot, click for full size view.

4. Click on the “edit” button
5. Check “Yes” under “Allow Free Shipping”, enter the minimum dollar amount an order must have to receive free shipping.Select National, international or both for Free Shipping zones. See screen shot, click for full size view.

6. Click “update” for your changes to take effect.

eSales411.com has new holiday themed checkout button set for Zen Cart. Sets include 7 buttons that guide your customers through the checkout process. At only $5 per set, this is a great way to get your set ready for the holidays.

Here are a few samples:

To purchase the buttons, visit eSales411.com