Added a page to my forum and noticed that when someone posts to the page that it does not post back to the re-written URL but instead posts to the URL with the raw query strings. Thought it was a bug with something I did but realized the vanilla site has this same issue. To reproduce it, an example page is:
http://www.domain.com/yaf_admin_users.aspx
That's what it shows when properly re-written. However, if you go to that page and click on Search, it will change it in the browser window to the original version which is:
http://www.domain.com/Default.aspx?g=admin_users
This happens for every page that is posted to. It's not a major issue because search engines generally aren't posting things to your site but it does break the illusion that the page is a real page instead of a query stringed programmatic page.
Anyway, thought I'd mention it in case someone else has a fix.
Terrific job on the forum code, by the way - it's very, very easy to expand the features. Everything is in a very intuitive place.