astrothug,
It is my understanding that Active Home
Pro will work with the CM19A, within limits.
First, I'm not positive that AHP will install the driver for the CM19A, although I have been told by some that it does.
Second, since the CM19A is RF only, control of power line devices will be limited to the 16 on the House Code the TM751 is set to and you will probably have to convince AHP to send all commands by RF.
Third, since the CM19A is a computer interface only, and doesn't have any memory to store timers and macros, all of those will have to be created as "Run from PC" and not "Store in interface".
I'm with you in wondering what X10 was thinking with this bundle. But, it may be a really nice and cheap introduction to AHP, assuming it can be made to work this way.
I sense a barrage of questions looming from both old and new AHP users!
If you have the guts to try it out, I (and I'm sure others) would be really interested in the journey.