You need three files to run Radium under UAE.

1. UAE, which you can find here. WinUAE can be found here.
   (You might also want to try "Fellow". Unfortunately, I can't find any working links to it right now).
2. Kickstart. An amiga rom file, at least v3.0.
   This one can be difficult. If you don't allready have one, you have two options:
   
   1. Buy the Amiga Forever package.
   2. Find it on the net.
      Try www.alltheweb.com and search for "kick31".
3. This file. This one contains Radium060f and all necesarry files to run it, and instructions about how to configure UAE, etc.