OK guys i have upgraded to 1.1.1 and unlocked it and activate it
my IMEI is also correct and baseband is upgraded
i have not used IPSF and anySim

i am fine after activating my iphone during jailbreak 1.1.1

but my iphone freezez everytime

when i am sms messaging, listening song, watching video or surfing safari
every time it crashes.

help me and one thing more i have installed customize and summerboard .
is this freezing because of summerboard, customize or what ?

and yes i want to ask that is it ok to downgrade the baseband verion while
running 1.1.1 ?