Really, ill give it a shot.Ooops, yeah, you were in the wrong spot on his site...this is where you want to go: ROM - Downloads There is a ICS section, just grab the latest and flash in recovery like usual.
Cool so the one on Pete's site here http://download.peteralfonso.com/crespo4g, is nothing more that a stock NS4G Tom that is rooted. Kernel, radios are all stock?
I am not sure why you would want to run the rooted stock ICS from petes page? Peter's Bugless Beast is just that. Bugless with some clean up and code added.
Android version 4.0.4 and the baseband is D720SPRKL2
I'm getting an invalid thread when I click this link...
Just passing the word along. See the thread and grab the files on XDA: Nexus S 4g CDMA Firmware IMM26 Ice Cream Sandwich - xda-developers
Im sry but this is my first time doing anything to my phone. Its unrooted and I dont know where to start. Is there a link or another thread in which there is a step by step process. Cause I have no clue what it means when they say to flash your device. THanks