I literally just repaired one now! lol
Ok all you need is your data cable (DCU-60) & you're away!
http://www.sonyericsson.com/cws/support/phones/detailed/updateservices?cc=GB&lc=en
go to this link then click on VIA YOUR COMPUTER in blue in the middle of the page, once it's downloaded run it then follow instructions & sony ericsson will replace your phones software for free!!
Takes about 10mins, woop de woop
GATORS, May 2009