I have been trying to use it too. Nice tool that RAServer no options, no documentation, atrocious log, and the ubiquitous
IWAD0250E Ensure that the Remote Agent Controller is started in the remote server machine and the WebSphere installation directory is correct.
Ensure that the WAS_HOME_V5 variable is set to the correct WebSphere installation directory on the remote agent controller.
Plus if you have the misfortune to shut it down it wont start back up a complete machine restarts.