Hi,
Sorry for the necro-post, this is to confirm that sadly, it is currently impossible to find a mirror of the original source code (have tried Google, Internet Archive: Wayback Machine to no avail, I think they don't have any file backuped except a few text files).
If someone has a backup of at least the source code for the latest stable (nfbadtr9u1), that would be greatly appreciated
PS. also here comes a random question because I'm curious about "history"...what are the relationships between 0746's nfba and Open Kaillera (which had a SourceForge page credited to Felipe Lema and K. Civilian (killercivilian)) ? Although 0746's is nfba author, it seems like they worked a bit together before ?