Sony Ericsson :: X Peria X2 / Change Time From 24 Hour Clock To A 12 One?

Sony Erickson X Peria X2. Just bought an X Peria X2 for $650 CD N, Yesterday having a few small problems questions. Question 1: How do I change the time from 24 hour clock to a 12 hour clock? I've gone into Settings -> System Settings -> Regional Settings and changed it from HH:mm:SS to H:mm:SS and turned the phone off then on. Tried other way around and it stays a 24 hour clock. The time style example doesn't change between the two options, it stays 24 hour clock.
Question 2: How do I access the Memory card on my computer. I installed Windows Mobile Center on Windows 7. I can access the Phones Memory but not the memory card itself where all the pictures and stuff are.
Question 3: The time of sending and receiving texts is different for me. I'll send a text at 13:33 and she replays 10 seconds later but the phone says she replied at 9:33, when it should be 13:33 as well as it was sent and received at the same time. This happens with everyone I text. Not a big deal but annoying as I wont know the correct time they text ed me back.
Question 4: Everything seems to kinda run a little slow when opening things etc.... I have checked task manager and nothing else is running data is off everything, but still pretty slow. I watched a video saying that It will receive an update this month but when I go to Sony website they only have the X1 on there not the X2 for some stupid reason.