download and install steam, if you already have steam make a new account.
http://cs.rin.ru/forum/viewforum.php?f=10go there
Register
download this:
http://cs.rin.ru/forum/viewtopic.php?f=29&t=44153follow instructions there
Download games here:
http://cs.rin.ru/forum/viewtopic.php?f=29&t=44153put the downloaded files in c:\program files\steam\steamapps
restart steam. And your downloaded game should work through steam.
NOTE: Some games can be installed thru steam without dling them from cs.rin.ru please test it BEFORE downloading files from cs.rin.ru (BUT ONLY AFTER YOU'VE INSTALLED THE FILE FROM THE SECOND LINK.)
NOTE: Games like CSS, TF2, DODS, require you to get the HL2 gcf's as well. ALL SOURCE ENGINE GAMES REQUIRE THE HL2 GCFS. If you already own a source engine game, you dont need the HL2 gcfs.