The file I am asking for is the downgrade utility, linked in the first post and through the whole thread, but all the links are dead.
Don't look at the titles alone. Look for knowledge in the content of the entire thread, for example, two posts before your previous one. Then ask for a specific file so that it is clear what you mean.
What would be the best thing to try now? Here are the phone details:
BRAVO PVT1 SHIP S-ON
It has CWM recovery on it but I think that might be from when he tried Unrevoked or another method (he's tried to root it a few times unsuccessfully).
The goal is to downgrade, root and S-OFF so he can try out some custom GB ROMs.