Need to restore help

I have a used 3gs and came with 5.1.1 i updated to 6.1.3 over wifi. Thats all i have right now i have activated yet on a plan. I to jailbreak for cydia stuff and had to go to 6.0 ipad baseband and messed up somehow. I need to restore somehow and its back to 5.1.1 i think. It connects to itunes but after it reboots it says cannot restore. Also a different itunes connect on the phone says put in your language and also country but thats it. Emergency call and start over or cancel. Please need help. Maybe someone would be even willing to trouble shoot it with me over the phone or email or yahoo messenger