Adding gaskets to route

I'm having trouble adding gaskets to flanges in piping routes in 2010 SP1. According to the What's New manual this should be possible. My VAR is also looking at the issue. Anyone else tried this? How do you set up you routing C and R points for the gasket part? How did you set up your mate references? Attached is a file showng my current gasket model.SolidworksRouting