Oops, 64 bit only.
Guess I have to wait a week or so 'till my "next gaming machine" parts show up, as I don't have anything running a 64-bit OS yet (I do have Win7 64bit for the new gaming machine waiting).
I do have to wonder why they limit it to 64 bit only, does mining Ethereum take a ton of memory for some reason?
The Ethereum use DAG, it started from 1GB and it will rise 600 MB per year. Originally the PoW was planned to last long.