Can't upgrades via itunes

First. My iPad is jailbroke and ver 4.3.2 and have not updated 4.3.3 and didn't upgrade iTunes desktop.

Ok. Today I have 13 upgrades that iTunes from my iPad is alerting me to do so. WheN I tried, igot a message telling me "can't connect to iTunes". ???
Anyone here with this problem? What do I need to do to resolve. Reason I didnt upgrade to 4.3.3 is because isn't the upgrades intended for Verizon(ipad) issues and small stuff that I didnt care for and I think the latest upgrade was for the tracking thing.
I didn't upgrades iTunes on desktop because I am still using 4.3.2 os.

So is there a solution for the error ?