I had the same problem. the whole "code 5" thing. i was about to post on here a while back requesting help, but then corrected it. I had downloaded one of the boot sectors from the famous guide, but it was this boot sector that was giving me problems. He says so in the guide, that it might not work for all. All I did was follow his guide on making your own boot sector. Then it worked. Well that was my solution anyway. Hope this helps someone.