i need help on downloading video games for the computer. .. .

most of the files are zipped and im lost at opening them

You'll need either winzip, winrar or stuffit expander to open zip files. These are compressed file archive formats. Once you extract the contents you should be left with an installer or perhaps the program itself. So use google for any of the above utilities. The last one is free.

ok thanx ill try it out

Im having a similar problem. I downloaded a game that is on three CDs and each CD is its own BIN file and i dont know what to do to install the game. So confusing

Sounds like you'll need to burn them each to CD then before they'll work. I think there should also be a cue file. I'm not experienced at burning images on a windows machine. See Peerless's advice here