I never got these emulators to work, and for awhile these emulators were VERY hard to get, one of my friends from xfire gave em too me. Scan them if you want, I've had them on my pc for awhile so I im sure they're safe (i run system scans once a week).
Heres the dld link, it has 2 emulators
http://jump.fm/TWKVB
click that
p.s. for legal issue, only use this for personal use, don't use it to host other games (i doubt they have the ability anyways though)