How do I select different F-Curves?

I’m doing some video editing using the VSE in 2.50. I want to fade in/out a strip various strips. I hit ‘I’ overtop of the opacity to generate f-curves. However once I have a few different strips, how can I switch between the different f-curves? I thought that selecting a given strip in the VSE would make it’s f-curves active, but it doesn’t seem to work that way.

Maybe I’m missing some simple way to toggle between the various f-curves?

Also, is there a way (or what is the best way) to identify f-curves as far as what strip they belong to?