Two HDD's died at the same time? That sounds kinda bad, more than just bad luck or coincidence. Or do you mean partitions on the same drive? When you say "linked ", do you mean RAID?
I'd say you have more problems than just Poser, Bryce and Vue, and I'd do a complete reformat of all drives and reinstall the whole OS.
You might try deleting all references to those programs in Documents and Settings and  the registry, but your drive failures might have caused problems you haven't even noticed yet elsewhere.
Personally, in a situation like that I'd rather reformat everything and start over with a fresh OS, rather than try to find and eliminate every little problem I see now or might run across in the future.