Debacle dude , that is bull man. Most of us here are running ICS one way or another, I saw a thread about Ics working with a Mac, as for me I am using it with Vista. Calling Sprint is a hit or miss, in your case definitely a miss..let me look up the Mac thread for ya
Start here
http://forum.ppcgeeks.com/showthread...et+sharing+mac
what issues are you running to? errors? can you describe where the ICS fails?