Well, last night, still without DSL ofcourse, I used my iphone's hotspot feature to connect my mac to it and used it's internet sharing over ethernet to activate the P51. Yay!!!!
Very impressed with the initial impression, now I need to unpack my Warthog and put away my Saitek Yoke to fly the Mustang for awhile, meaning my NGX and CRJ (which I also just bought yesterday) will have to be parked for a little while.