help needed in solving a issue in gallery and auto updation of apps..pls help

1)i uploaded some photos in picassa and i didnt synchronise it in my phone,but automatically it got synchronised and it is reflecting now in my gallery..i really dont know how to delete it.please suggest a method.

2)a)i did not select automatic update option for the applications that i have but suddenly aldiko and gmail got updated today and its imply reduces my phone memory.pls suggest a way to stop this.

b) i know that android market is updated to a new user interface and for me when i connected my mobile yesterday to internet it got updated but automatically google maps also got updated.why google maps is getting updated?


please help me on these queries..

many thanks in advance