Pre-recorded Bass & Guitar To Separate Amps Via Mbox! Options

[wils_e]

Just wondering if anyone could help me with the following dilemma:

- Pre-recorded Bass track (output through a bass amp)
- Pre-recorded guitar track (output through the PA/guitar amp)
- CLICK track (sent to drummer's headphones, along with the bass and guitar tracks)

I've been able to send the click and bass to his headphones, while the only the bass plays on the bass amp via panning the bass track hard left and the CLICK hard right.

I have an MBOX 2 interface, it has 2 mono outputs (left & right) while the CLICK is a pre-recorded audio track as well.

I understand I need to do some bussing here, but for the life of me I cannot wrap my head around the signal routing paths!

If this is at all possible, I would appreciate some feedback.

Thanks for your time!!