Can you fix searching please? When I search for something on the forums, spaces get replaced with "%20", thus I get no results.

While I second this notion, I also wouldn't hold my breath until a better search function gets implemented, if I were you.
May result in an untimely death. ;)

You're usually better off using external search engines.
Just add the appropriate search terms (e.g.: GOG, forum, [what exactly you're looking for], etc).