Download HJ-Split!
Some people missed this in the txt files: In order to play some of the recent updates you need HJ-Split to combine the files so they are playable. Large files are divided so they are easy to download. HJ-Split is a free file splitter utility like WinZip or WinRar. It can be downloaded from here:
http://www.freebyte.com/hjsplit/
Once downloaded, run the program and click on Join, select Input file, browse to the folder where the files are and select the first file with .001 extension, open and then press Start!