All, I have good news and bad news.
The bad news is that Motorola still has NOT gotten back to me re: MOL account or otherwise :-(
Now the good.
ANTENNA connector:
As per Motorola Support directly, the antenna connector is a "lug" type. I do see a similar adapter out in the wild for a different radio to BNC... I have found the GP-68 to look very similar to what we want for the XPR7550 ... thoughts?
BNC Antenna Adapter Motorola MX Maxon Midland Tekk | eBay
PROGRAMMING
I realized we manage about 2500 radios here at work, so, I said let me go talk to my friends in the Security and Facilities departments and sure enough, we manage our own radios. I was directed to the sub sub sub basement level (jk) to the lair of one Radio Admin... VOILA!! While our radios and frequencies are all analog at this time, he has a Moto account and was able to download CPS ... we went with 8.0 as the newer ones his rep at Moto wasn't sure would work well for XPR7550 .
With CPS 8.0 and NO CABLE yet (mine is coming) I wanted to try and get Bluetooth going. I was told by someone (Gary?) that I may need to at least set up Bluetooth with the cable before I could use it.
Good news, the radio can be paired with a data connection (Bluetooth to Serial) and Windows 7 x64 (my case) right out of the box as it comes from Factory. Voila II !!
Once that happened, turned on Bluetooth on CPS and read the radio.. Yippee!!
Then with generous support and tons of reading, I have my XPR 7550 fully set up for DMR-MARC network, local Analog HAM bands and Public Service receive only (scanner basically)
One problem I noticed is that while the radio seem to be fully open from 403-512 (still have to test fully) it will NOT accept anything other than a 12.5 KHz bandwidth

so I need the EID for that. I am on the phone with MOT right now as we speak to settle my CPS order, MOL account, EID ;-)
Thanks to all who have helped me so far. This radio is absolutely SUPERB!! The audio output is unbelievable!