Here's how I got this working with vb4:
- Import attached version of the product, allowing overwrite. (this is the standard product, but with Fiel's changes included)
- Edit your 'navbar' template. Add: "&exclude={vb:raw bbuserinfo.excludeforumids}" to the end of all links which go to search.php, and which contain both "do=getnew" and "contenttype=vBForum_Post" in the URL.