Wow, thanks, that's awesome. Tried looking around for more TEXT files, but looks like there are no more so far, so won't bother trying replacing yet. I thought the tutorial seemed pretty clear though.
Hope it'll will work for the actual version then, but.. hash checks?
Anyway, just to check, all file formats other than ice, text, dds, snd/cpk/film and adx (i.e. trn, pgd, trp, aqn, tcb, set, aqp, sib, aqe, acb, fig, aqm, aqv, hca, mus) are still unknown, right? I Googled around for a bit, but to little avail (only potential hit was Pretty Good Privacy archive for PGD).