Nokia PC Suite v7
Lately i have been searching for pc suite for Sony ericsson and found out that Nokia PC suite v7 is ready for download! As far as i know, it had a verrry long beta testing period.
Unfortunately, its yet not updated on nokia’s official site as of yet. I am happy that we know it earlier to the Nokia webmasters 
. On the site you will still find its older version v6 and if you want to get and try just released PC suite (7.0.6.3) you’ll have to download it directly from the Nokia NDS servers.
The file is around whooping 34MB. New version brings bunch of new features and fixes the known bug from the previous version.
It will backup, scyncronise and transfer data accordingly as per your phone model.