ULTIMATE Seo Urls 5 - by FWR Media in General Add-Ons Support Posted June 14, 2010 Possibly yes. there are two drawbacks to the standard manufacturers dropdown. 1) As you found "Please Select" produces index.php?manufacturers_id= which is of course an inexistant manufacturer ( and why therefore USU5 correctly shows a 404 not found page ). 2) Every selection creates a 301 redirect to the seo url, with Google suggesting it is starting to follow such dropdowns this is not really a good idea. The file in "replacements" changes this operation and cures these issues. Ok thanks, I haven't edited my manufacturers.php file since my original install. Would simply 'replacing' it with this new file change much else? I annoyingly don't have the skill to tell what else it will change immediately.