Unless I'm retarded or blind, I can't seem to find a "Search" button like in the old site!
You must indeed be either retarded or blind, since you're posting this in Graphics Theory & Programming. The correct subsection would be Suggestions & Feedback, which already contains a similar thread: http://devmaster.net/forums/topic/15613-site-forum-search/
The gist of it: the search feature exists, but they simply forgot to add the button for it to the layout. Use the following link: http://devmaster.net/forums/index.php?app=core&module=search&search\_in=forums