Restoring my Ipod!

Question

I have a 60GB Ipod which I bought about 3 years ago and about a year after having it when I tried to update the library it told me to restore it - I did this following the instructions, up plugging it and attaching it to the mains yet when I plug it back into my Itunes it tells me that it again need to be restored! I have followed the proceedure a million times and can't get it work!!!!!

HELP PLEASE!