Hi,
thanks for the above suggestions, they have gotten my rewind, ff, play and record working, but not stop. When i checked the signals coming out of Midi Control Center I noticed that each of the transport controls that is working has MMC <appropriate transport control here> (see below) while the Stop button just says MMC. 
(this was copied straight out of Midi Control Center)
 In:  F0  7F  7F  06  05  F7  |  MMC Rewind
 In:  F0  7F  7F  06  04  F7  |  MMC Fast Forward
 In:  F0  7F  7F  06  66  F7  |  MMC 
 In:  F0  7F  7F  06  02  F7  |  MMC Play
 In:  F0  7F  7F  06  06  F7  |  MMC Record Strobe
I tried to assign a midi control to this button but it appears that logic doesn't operate this way for transport controls. 
Any ideas?