Thanks for your quick suggestions.
The patch (WMPolicyPatch.zip) at the following link works fine with my HTC Touch Pro2 (with build 21907).
http://forum.ppcgeeks.com/showthread.php?t=66973
Now, I am able to sync with my work e-mails (Exchange ActiveSync) over the air.
Can some one provide the solution for the following thing:
3> When I turn my phone to Landscape, the screen doesn't become land scape automatically. I need to slide the sliding keyboard to make the screen landscape. How to make it automatic landscape/portrait depending on the phone orientation, like in Sprint ROM.