[Friendly Fire Tees]

I tried to change the "powered by" text at the bottom & I get this message ~~~~|txt_formid_is_wrong| |bGVuZ3RoPg==|~~~~
i edited the code from here /common_files/main/prnotice.tpl

I wanted to kno if I try to restore the file will it change my whole site? or will it just change that part? I spent too many hours trying to add products & stuff & dont want to start all over. Oh & I tried to ftp & put it back but their site is under construction or something it wouldnt let me in... now I cant add products cuz of this... please help me get it back to the way it was.