I mean no disrespect to Havoc, but that was pretty tough to understand. But he is right. You have to be on .902 cuz thats what you have to be on for it to run. I cannot confirm this from experience the incorrect way, but I'm pretty sure you have to be running Safe Strap as opposed to Clockwork Recovery, if that means anything to you. :happy3:
Check out the Th3ory ROM threads, they have all the info you need as far as links, instructions, etc. for installing a stable ICS build. There are several with decent data, and it sounds like camera will be here soon! And oh, is it sweet...