I know nothing about nvidia!
You could try this one:
http://resident.dyndns.info/refracta/re ... 5-xfce.iso
via wget.
I am not so sure, but i don't think the releases differ that much
(some of the tools had problems, but you can download them from the git-repo, i think).
Before you go for a pointless download wait what fsmithred says...
I really got no idea what the actual problem is, and if any of that might be a help to solve it.
Edit:
This would be beta1:
http://resident.dyndns.info/refracta/re ... _beta1.iso