[ROM] Gingeritis 3D v1.2 [12-27-11]
Looks like this ROM was updated recently. More customizing options, tweeked Rosie, Beats audio!!
If you rooted your phone, the hard parts over. Read this guide to learn how to flash roms:
[Guide] Flashing ROMS/KERNELS/RADIOS [Video/Pics]
Make sure you make a backup via Recovery first!. Always backup before flashing. And for convience, download Titanium backup and run it to backup your apps. Be confident you know what you're doing before you go into this.