I installed Duttys v3.0 with no problems.
Then I restored the backup created by sprite from duttys v2.9 smoothly with no errors (following 2 rounds of hard reset and then setting the system clock and regional setting correctly).
Everything is working without any problems.
However I have following issues to be solved:
1. The battery indicator shows only 19% charge although the battery is 100% charged.
2. The phone dial pad disappears during the phone call (though duttys disable sleep in call and marzens touch in call are installed) so much so that most of the times during/at the end of call I have to fiddle in order to make it show up.
I think this problem has been around for quite sometime now.
3.Suddenly after this upgrade the calendar doesn't show the weather (I understand the rituals of matching city selection/weather selection etc and they are set accordingly and also that I didn't have such problem before.)