I don't think they have a patch made for 1.0.0.5, when they release incremental patches they do it from the current to the new version, so that one would be 1.0.0.5 to 1.0.0.6.
The incremental patch out right now is only 1.1.0.9 to 1.1.1.0.
Okay, thats enough numbers and periods for me, if you don't know where to download the full update, you can get it <a href="http://www.fileshack.com/file.x?fid=18">here</a> and many other places.