A testing version is now available for those who want to test on your local host, you can see the demo here:
http://demo.rubikintegration.com/zencart/

It addresses several issues:
1. SSU may not work properly in some cases with extension set to something other than blank.
2. SSU did not address linked products properly, for example you have 1 product belongs to 2 categories, then there should be 2 links depending on the cases.

An example:
Code:
http://demo.rubikintegration.com/zen...cut-linked-p-5

http://demo.rubikintegration.com/zen...cut-linked-p-5
Both links above point to the same product. In the old version, SSU will redirect the first link to the 2nd one, this behavior is not desired. This new version addresses such issue.
Attached Files
Simple SEO URL.zip (43.9 KB, 18 views)
Yellow should I do an update on this module now or wait. I notice you have updated it in the form.