I've seen people use this program called "remote desktop" or something along the lines of that, but it can remotly controls another computers desktop. does anyone know how I can do this? or what program I need to download?
if you want to use remote desktop on windows XP you must enable remote desktop by
right click on "my computer" -> "properties" -> "remote" -> click on check "Allow users connect remotely to this computer"
That work on LAN, if you want control another computer over internet You can use logmein.com website.
good lucks!
Windows remote desktop is one of the best free ways to control computers internally on a network, however if you're primary goal is to access them across the internet, then Logmein is a great secure, free program.