Click that link, then follow the instructions.
1.You must have something like Winrar or Win zip (winwar reccomended)
2.You need to know what bit your computer is (Mine is 64 bit)
3.Download Evolutionx wait for download to end.
4.Once it is done Double click then in the file you'll see at the top 'extract files'
click that then click desktop then ok.
5.Once its done extracting open it up find the 'run' or something along those lines, then start to play.