Syncing MPC-1000 to Reason

I need help ASAP I got my mpc synced up with Reason 3.0 and it works fine when I hit play on the mpc it starts the Reason, but I cant get no sound out of my Reason only the sound out of Mpc will play. What do I need to do I got my MPC hooked up in my audio interface. My studio setup is below the line in my signature field.
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Reason 3.0, HP-Dual Core-Vista, MPC-1000, Focusrite Saffire Pro 10i/o, Alesis MK One II Monitors, Audacity, and Radium 49 MIDI Keystation