do you have a data plan? is it working properly? are you trying to backup your SD card?
Alternatives on How to backup Xperias
http://talk.sonymobile.com/thread/36355
also
on your PC
1) open any folder -> click on tools -> properties -> view -> show hidden files
2) swap SD cards, mount the old SD card, go to your SD card, press Ctrl + A then Ctrl C, on your desktop create a new folder, open it, then press CTRL + V
3) swap SD cards, mount the new SD card, open the folder you just created, press Ctrl + A then Ctrl C, open your SD card, Ctrl + V
Don't forget to mark the Correct Answers & Helpful Answers
unrelated topic, if you have some time please check this thread
http://talk.sonymobile.com/message/244522#244522
