I have made some Tutorials that deal with connections between Max and Logic.  They are located under the “logic help files” link at:

http://home.lagrange.edu/mturner/

The tutorials cover:
1) Sending MIDI from Max to Logic

2) Rewire Max to Logic

3) Max controlling Logic Plugins

4) Multiple MIDI streams from Max to multiple Logic tracks

You can also email me at:
mmturner( at )mindspring (dot) com
if these tutorials don’t answer your specific problem.  I’m happy to try to help out.  

Hope these are useful,
Mitch