1. Launch Cydia.
2. Add the source "cydia.xsellize.com"
3. Search "gpSPhone"
4. Add the "gpSPhone" from the xSellize source to your queue.
5. Seach "gpSPhone again and this time add the "gpSPhone Bios" to your queue.
6. Go install both of them from the queue.
7. Respring your iDevice.
8. Locate the gpSPhone icon on the last page of your applications.
9. Launch gpSPhone for the first time.
10. Follow the simple in app instructions on how to download ROMs (Games) right from the app itself!