@Power_Ranger - check this thread out http://forum.xda-developers.com/showthread.php?t=1565232 This is the leaked ATT ICS official ROM (should be around 300MB). If you spend few minutes there you will get what you need.

@ritthe - technically both tmobile sgs2(hercules) and the att sgs2 skyrocket are the same. I dont have access to a tmobile sgs2 so do not have right answer to your question but there seems to be some development going on in xda. here's the link if you want to try out http://forum.xda-developers.com/forumdisplay.php?f=1332