1 q: try to go to sony ericsson web page and install software becouse your computer wont recognize ur phone as an harddrive cuz it dont have propper drivers. than when u install it , it will show u as REMOVABLE DRIVE: and you can browse it like explorer mode or u can use sony's software for filetransfer!!!
2 q: about ur
sim contact . if u had on your old cell all the numbers on the simcard than it wont be a problem to see it ... open the phonebook on ur new phone go to options its 2 scrolls up when u open contacts and then go go ADVANCE and then to usual phonebook and chose
SIM contacts and say yes to all what the phone is asking u!
2.1 q: if u hadn't had your contacts on your oldphone simcard but directly on your phone than u copy it first to ur simcard and do the procedure under q2.
Thats it!
P.S sorry about bad english ! I am from Croatia
(if anybody knows where that is)