This hasn't been checked into cvs yet, as we're still working out a few of the bugs (some might argue thats what cvs is for ;-) but we installed it here on scoop.k5 to see if we can get some people to pound on it a bit. Its rather useless to test on a database with very few comments, so thats why its not in cvs for people to download and test.
Fulltext searching will do searching the way it is supposed to be done, not by exact string (though there is a button for that in our search page), but by how well something matches the whole string, and each part of it, case insensitively. Its really cool.
So, once again, pound on the searching here. See what you can break. And much much thanks to hillct for all of his hard work.