Are there any dependencies for unrevoked3 to run on stock ubuntu? I cannot get unrevoked 3 to run on either my laptop or desktop which both run 64 bit Ubuntu.

Is there a dependency I need?

I download and extract to ~/Downloads

cd ~/Downloads
gksu ./reflash


...and nothing happens.

Based on this Ubuntu forums thread, it seems to be a conflict between 32/64 bit. Is there a way to get this 32 bit application working on my 64 bit system?
unrevoked needs 32bit. That is all. 

I ran it on a 32 bit live cd.