Default [Q] {Q} HELP!!!

I used a root method on youtube today. SuperUser wouldn't work because the binary wasn't installed. So I tried to reboot and go into recovery, then I backed up and erased the data etc. So it failed on the AOKP rom that i was going to install then it wouldn't let me restore. So using ODIN fastboot i flashed over CWM 5.5.0.4. I think one of the new CWM recoveries has USB Storage Mount but on there website the zips only come in .zip and not .tar so I can use odin to flash it over. When I try to flash the stock ROM (.TAR) (619MB) through odin it fails. Someone please help me