Credit where it's due gentlemen! As well as flashing my zgemma box successfully, I've also managed to install wooshbuild infinity on to it, thanks to the step by step instructions on this site. Needless to say, this is by far the best site I've come across, and as I've already said, I wouldn't have got this far without your help. Perhaps I'm now in a position to help other newbies, by sharing my own experiences with them, particularly my mistakes. Thanks again, as your patience and willingness to help has been very much appreciated.