Yet Another NO SERVICE Thread

Sorry if its a long post :P
well guys im having the following problem my iphone is 1.0.0 the thing is i tried to install anysim as i tought it had 1.0.2 firmware for granted so i didn't check and stuff (yes im stupid) it didn't work for obvious reassons now i tried upgrading or restoring the firmware manually to the original version using Itunes and im getting a theres not enough memory error i tough it was the PC but ive tried it on another and it didn't work same error (hopefully its just a PC problem but i doubt) so my question is what can i do from here? i already tried installing apps (wich is something i can do and it works) i can't restore like i said....
is there a way to rollback the process i did? i mean to restore back to the default without using Itunes as like i said it doesn work :( hopefully someone would be able to help me out on this thanks in advance

not enough memory means you are using a OS that is not in english. Try using a english version of xp or vista it sould work then.

ohh thanks alot never tough that would be an issue ill check it out as soon as possible