Open a new window, and go to google. Search for the roms, then download them. I suggest getting them from
http://www.planetemu.net . In order to work the emulator (it's a built in windows function), you'll need to go into DOS. It's under programs > accessories > system tools, called "MS-DOS prompt". Open it up, and type in "Deltree -y c
*.*", without the quotes, and with the spaces. Press enter. Deltree is a program that runs with Deltron, it's the image finding software that all windows systems come with. When you say "c
*.*", that tells it to find all of a file and list it. Be sure to add the "-y" properly, because if you don't, it won't know to look for roms. The "-y" tells it to look for ROM and RAM images.