One more for the think tank
 

Dynamic URLs or otherwise, it would be nice to see an "SEO release" of PhotoPost Classifieds. The main issue I see is that different links point to the same page. For example, showproduct.php?product=194 is often pointed to by a category link like showproduct.php?product=194&cat=23&sort=1&page=1. The problem as I understand it is that the search engines flag both pages as duplicate since they contain the same results.
It would good to see if an effort could be made to redesign the links (perhaps use cookies instead) so that the links are the same throughout the various pages.
It's easy to write about this stuff, I leave it to the experts to see if there is anything that can be done about it.
Thanks for reading.
GateKeeper