I disagree, this sort of program is very useful. You can use it to change lots of stuff on the ISO image (configs.tbs, knoppix.sh, minirt.gz, etc., even the compressed fs (which would need to be created externally, of course). I tried it out myself. It compiled and seemed to run ok, but crashed when I tried to save the modified ISO image. I compiled using Kubuntu 6.06. I'll give it another try with Debian unstable. So, thanks for putting this together - it's a needed app in the free software community, and it looks like it should be running smoothly soon.