OK I installed the Dialer_6.5.3NRGZed Lite.cab and it worked fine. Dialer screen fixed and bluetooth hangup issue still resolved.
The only side effect that I have is the delay after hangup. My car sits there and says downloading phone book for like 2 minutes where it used to take seconds. I can't make another call or redial or anything until it finishes. Major pain in the ass if you are trying to make more than one call.
two steps forward one step back
we are getting there.
Many thanks to the chef for his help in addressing these issues.