My public release contributions:

NOTE: all osCommerce releases are under GPL!

• Ultimate SEO URLs [ osCommerce Servers ]
  

  This contribution builds on the cName contribution and offers search engine friendly URLs for any osCommerce based store (osC, CRE, osC-Max, Zen Cart, etc) on any type of server.

• osC-Explain (Developer's Version) [ osCommerce Servers ]
  

  This contribution is designed for coders and developers.  It stores the EXPLAIN output for every query on the scripts that are specified through an admin control panel setting.  Current script selection is site wide, only certain files, and exclude certain files.  This is very handy for coders that want to code their contributions with the most efficient and fast queries possible.

• osC Advanced Cache Class (for developers) [ osCommerce Servers ]
  

  This contribution is designed for coders and developers. It is the most advanced cache system available for osCommerce and provides very poweful features for optimizing most any site.

• Thumbnail Quick Category Browse [ osCommerce Servers ]
  

  This is a nice little contribution that places a thumbnail row at the bottom of the product information pages. It is a quick browse of all the products in the same category as the currently viewed product. Inspired by the blog of Carine...

• Page Cache [ osCommerce Servers ]
  

  This contribution caches the rendered page and saves up to 95% of the database queries and 90% page load time. This is a versatile modification and works with cookied customers and non-cookied.

• MS3 Tax Class for MS2 [ osCommerce Servers ]
  

  This contribution ports the MS3 tax class to MS2. The call to tep_get_tax_rate() is called on each price display and will result in 1-2 queries each. Installation of this contribution may decrease per page query count by 25-50% depending on how many prices are displayed on each page.

• SEO Manual - Basic Info [ osCommerce Servers ]
  

  This contribution is a basic manual for novice webmasters.

• Modify tep_db_query Data Logging - More Useful Data [ osCommerce Servers ]
  

  This contribution modifies the stock osCommerce data logging function to record meaningful data. Also, it has a built in filter so that one could easily capture on those queries that take longer than "X" seconds to execute. I use this script while debugging client sites...very handy.

• Popup Image in Product Listing [ osCommerce Servers ]
  

  This is a simple contribution that repalces the product listing thumbnail with a "click here to enlarge" link to a full size image.

• UNION query for product listing [ osCommerce Servers ]
  

  This contribution is designed for large stores with a massive inventory. Must have MySQL 4.0 or higher to use the UNION query!!

• Optimize also_purchased [ osCommerce Servers ]
  

  This module optimizes the also_purchased_products module. Eliminates the (EXPLAIN) Use temporary, Use filesort. Increases speed and performance on the product_info pages. Includes screenshots of the explain query output. Also, stock osC code is intact in this file and can be switch back and forth by a simple define at the top of the file.

• cName and pName [ osCommerce Servers ]
  

  This contribution replaces the stock method of passing the product_id and cPath parameters and makes it more search engine friendly by using the actual product or category name. It is installed on this development server so just click around and notice the URL's to see how it works.

• Queries and Parse Time [ osCommerce Servers ]
  

  This is my debugging tool that outputs the number of database queries and has an optional output. If the debug output is enabled on the brower you can view number of queries, per query execution time, query sent to database, and super globals ($_SESSION, $_COOKIE, etc). A very handy tool to track the store performance or debug an issue.

• Feed Base Class + Froogle [ osCommerce Servers ]
  

  This contribution is still beta but is a good base for future development. It provides a base class with most needed functionality like automatic FTP, supports various delimit formats, specials, etc. Should not be used on a production server.

• Infoboxheading Clickable Link [ osCommerce Servers ]
  

  This is a small modification to the boxes class that makes an infobox header row clickable (instead of just the little right arrow). It is installed on the dev server so check it out.

• Quickship [ osCommerce Servers ]
  

  This contribution allows a store owner to change the status of multiple orders with one click. Great for stores that get many orders daily and find it tedious to edit the order status for each one.

• Dreamweaver Codehints - MS2 [ osCommerce Servers ]
  

  This contribution adds the osC API functions to the Dreamweaver codehints library. A must for hardcore developers!

• Customer Registration Report [ osCommerce Servers ]
  

  This contribution presents the number of customer registrations over any timeframe and outputs in either daily, weekly, monthly, or yearly format. Great to track campaigns!

• Collapsible CSS Category Menu [ osCommerce Servers ]
  

  The category menu is fully CSS driven and easy to modify for the individual store look and feel. In addition, it is faster and less resource intensive than the traditional DHTML menu solutions.