dunno you must have done something wrong installation wise.. everything is there.. just put everything from the zip in the patch ontop of everything in your s2 folder
Download the patch, place the zip file in your LFS directory, right click and extract here, the zip will overwrite whatever files it needs to, click on lfs.exe as normal to play.
Or read the readme.txt file that comes with the zip!
A friend had the same problem when he tried to extract the zip... He tried again and it worked though I think he said. Either way, we were racing online seconds later :P