The osCommerce 2.3 templates themselves do not require you to over-write any files, but prior to ever modifying your osCommerce installation (or anything else for that matter), always back up everything on the server and in the database! Again, back everything up!
Before you install a free template, you need to first install osCommerce (version 2.3). If you're running an osCommerce 3 shop (the newer version), you need to either downgrade or consider downloading one of the many version 3 osCommerce templates available here.
For osCommerce installation instructions, go here.
Once you've got an osCommerce shop up and running, download and unzip your osCommerce 2.3 template.
Via FTP, upload everything in the 'upload' folder to the same directory as your store.
Template files:
The upload folder contains the following (### = template number):
includes/template_top.php
includes/template_bottom.php
includes/languages/english/images/buttons/button_quick_find_freeoscommerce_###.gif
freeoscommerce_###/stylesheet.css
freeoscommerce_###/images/ (template image files)
Important note: The template_top.php and template_bottom.php files in your osCommerce installation's 'includes' folder will be overwritten. You may want to back these up before installing your template.
Your osCommerce version 2.3 template is configured with menu links (or room for a brief description of the site or anything else you want to put there) at the top of the page, and a footer at the bottom of the page for links, copyright information and/or anything else.
To modify the menu links, you'll need to open includes/template_top.php:
You will find a section that looks like the following (where the Links have actual html and/or php code):
<div id="top_menu_links">
<span>Link 1</span>
<span>Link 2</span>
<span>Link 3</span>
<span>Link 4</span>
</div>
To modify the footer, you'll want to modify includes/footer.php, or modify the footer directly in includes/template_bottom.php.
If you want to put your logo in place of the website name, you'll want to open includes/template_top.php and/or includes/template_buttom.php and locate <div id="website_name"></div>. Simply place code to display your store's logo in place of the php that displays the store's website name. If you need to tweak positioning, edit the corresponding code in the stylesheet.
If necessary, you can work your logo directly into the template image using the PSD, as well.
The Simple Template System (STS), a free osCommerce add-on, is the template system osCommerce 2.2 should have come with. It makes using templates and editing your store's appearance easy. Read more.
Need help installing STS or an STS template? Contact us with your needs and we'll quote you a reasonable price.