PLEASE!!!!!!!!! tell me what I am missing here

I have a MacBook 2.0 Intel running 10.4.11.
I would like to run DP 5.13 and MachFive 1.2.3.
After installation, DP 5.13 runs just fine. However, Machfive doesn't show up in the plugin splash as DP scrolls through the plugin list as the application loads.
After installing the proper iLok extentions, sequentially installing M5 v1.0, 1.2, and 1.2.3
Machfive refuses to publish itself. Please tell me what I am doing wrong.
Your help is GREATLY appreciated.
Thanks,
RJ