If your virtual pages, rotator and link tracker do not appear to be working then something is stopping the 404 error handling from operating correctly on your server. Here's what to do to diagnose and fix the problem:
1. Check you have setup the error document handling correctly. As there are so many control panels it is not within the scope of this document to handle any more than the most common. If you are unsure then please contact your host for assistance. Most Linux systems allow the use of the .htaccess file to modify the web server behaviour. To use it make sure one is available in your root web folder (usually public_html).
ErrorDocument 404 /404.php
2. If the above is correct then toggle the 404 Filter in the configuration. This code removes any contamination from the querystring (the bit after the ? on a link).
BCP -->Configuration --> General Configuration --> 404 Filter --> Yes/No
(it is ok to be on or off, switch between the two to see which works).
Related FAQ
Why Does My 404.php Not Work Correctly?, Visrtual pages, rotator and link tracker do not work
http://forum.ventrino.com/index.php?showtopic=5906
Using .htaccess To Add Your 404 Error Page, For Apache Web Servers Only
http://forum.ventrino.com/index.php?showtopic=6256