My guitar rig 3 isn't working with V-100?

When I go to add effect and choose guitar rig 3 with input echo on, none of the pre amp sounds are coming out of Guitar Rig 3 when I try them out. However, the volume bars are responsive to my playing so I know it does recognize it. What confuses me is when I go to Guitar Rig 3 outside of SONAR and check my MIDI/Audio devices it doesn't recognize my V-100. Why isn't my Guitar Rig 3 working???