i checked a number of STATUS files, and all the ones i looked at
said either FINISHED_INCOMPLETE or DOOMED. that does not fill me with
confidence. does that suggest that none of those ISOs are usable?
Well, maybe someone more experienced than me can be more precise. Please correct me if i am wrong.
DOOMED should mean that something has gone very bad, and no images were produced.
FINISHED_INCOMPLETE should mean that not all the expected images have been built. So, if you find the ISO you are looking for, it should boot.