No, when you send it uses the old messaging system. Receiving is the new messaging though. This is the cleanest workaround I have found.
Do your searches, the reason why it doesn't work is an IP Address is needed.
See this thread:
http://forum.ppcgeeks.com/showthread.php?t=101286
It seems to be a lost cause.
I am just waiting for the Android project to get data working and bye bye Windows Mobile.