Puuh, this weekend, we finally got round 'repairing' my girlfriend's xbox (Rev 1.6). We tried to install it over 6 months ago, but failed. In the end, I think this was because of bad media (the xbox is very picky about media. CD-R's won't work at all, CD-RW did boot, but well. DVD-R seem fine, though).
Anyway, here is a recipe how we got it running:
.exefile, but you can extract it easily with rar on the cmdline.
Note that the slayer image seems to offer to flash some other BIOS versions in the MOD Chip. we didn't do this this weekend, because we already did that 6 months ago. IIRC it was a EVO-X M8+ BIOS we flashed. Honestly, I have no idea if this was a good decision, but the xbox works for us now :).
What can we do now with the xbox? Here a couple of ideas: