Yes, I've gotten it to work...
There are two versions, one from last Summer and another from this Spring. They use different GAT versions, I think, so that's the first place I would look.
Did you install the Spring version?
It has a 'depedency checker' with the installer that can insure your components are correct (it doesn't differentiate Orcas from VS2005, though, and it doesn't work on Orcas officially yet).
Double check for versions of GAT and other dependencies.
Link to SCSF/CAB forums on
Codeplex.
Edit: maybe a reinstall/repair of SCSF would help...?