When I installed from those CABs the server settings were not correct. Open your text/MMS inbox and hit Menu and go to to bottom option "MMS Options. Go to the CDMA Servers tab and create a profile for Verizon. Server address should be
http://mms.vtext.com/servlets/mms, port should be 80, connect VIA "internet" and everything else can be stock. Make sure that is correct then try again. Also MMS doesnt seem to work for me when WiFi is enabled cause it tries to send through wifi instead of the carrier connection. Good Luck!
Mark