[nukem]

You just need to make sure you clearly state that if you use a fork of a piece of software that you can only goto the place you got it from not the place they got it from. In the open source community you always work up, for example if I had a problem with gaim I would file a bug with gentoo(my distro) and if they couldnt resolve it and gentoo developers decided it was a gaim problem it would be resolved upstream and I would then file a bug with gaim. The Linux kernel has a definition were you can defined what extra version it is(like if your using the gentoo patches its call 2.6.16-gentoo). All the code needs is a version definition and state in the readme that if you redistribute the code you need to change that to your team number.