OSCShop
In the admin UI, use Tools > Version Checker to look for updates to OSC.
http://www.oscommerce.com/Products
Notes on the theming:
http://multimixer.gr/02/12/2010/how-to-get-a-new-theme-for-your-oscommerce-store/
Need to adjust /catalog/includes/template_top.php any time it changes to link to the everstore jqueryUI CSS:
<link rel="stylesheet" type="text/css" href="ext/jquery/ui/everstore/jquery-ui-1.8.22.css" />
USPS Shipping Module
http://addons.oscommerce.com/info/8702
Support thread: http://forums.oscommerce.com/topic/383307-usps-rate-v4-intl-rate-v2-official-support-thread
FedEx Shipping Module
http://addons.oscommerce.com/info/7977
Support thread: http://forums.oscommerce.com/topic/375063-fedex-web-services-v9/
UPS Shipping Module
http://addons.oscommerce.com/info/7848
PayPal Website Payments Standard Module
http://addons.oscommerce.com/info/5655
Manual CC Processing
http://addons.oscommerce.com/info/8579
We probably want to modify this to use the GPG encryption system to forward the CC info and not store it on the server.