Have you checked your PC recording settings? I had to do some screwing around with drivers. Memory is failing me now, but I had to do something with recording devices or I could not get recording at all. Since you are getting something, you may have that part right.
Another thing I had a problem with was in Reaper itself, I had to set recording input to Stereo. In spite of having all that MIDI stuff, only Stereo worked.
And one other thing was on my pedal. It has a line switch for amp/mixer. Mixer setting is recommended for recording. Maybe your Pod has one of those?
...And that exhausts my knowledge of recording issues and solutions. :p
...so ever since then, I always hang on to the buckle.