I have gotten this error after just making a 1.1.4 cfw. The file I used was the one I'd downloaded when I updated my iPod touch via iTunes.. It/s a 1.1.4 restore ipsw. After running winpwn and only placing installer on the install programs list, and then making the ipsw, I go find where i saved it, using the browse ipsw file function. It takes a second and then an error comes on the text on the bottom saying unknown file... What could I be doing wrong? i just installed 1.0 and the sh*t won't even work.