Update (19-May-2013): This is fixed in WebRadar 3.0.5+.
There is an issue in WebRadar that cases WebRadar to not run if you are using WAS 8 fix pack 4 (version 18.104.22.168) or newer. The error you will see in the logs will look like:
We are actively working on a fix to the Boost library that has this issue. Until we release a fix WebRadar customers on WCM 8 should avoid installing a WP/WCM fix pack that forces WAS to WAS 8 fix pack 4 (version 22.214.171.124) or newer.