I think it would be a good idea to have individual search boxes for each support forum. Though would it be possible to have one for each project entirely? That way, you go to your project, type "issue image" and it comes up with all the references of image from the support forum, or you can just type "image" and it comes up with all appearances of the word in the whole project without having to search the whole site. If the search function already lets you narrow your search to a project, just let me know how it does it and I'll drop the second idea. search in project support is still good.