Share your experience!
For those who have SI Number in the list but can't update. Problem Solved.
Just go to:
http://www.sonymobile.com/gb/tools/update-service/
Download SUS - Sony Update Software and install it. Just run and "voilá".
If you have any questions just ask me.

hello, i need some help on the ics update matter..
i tried both pcc & sus, both encountered problems, tried disbling firewalls n antivirus
on pcc:
stuck on like 15% preparing cmputer 4 updte thingy n nver moves again
on sus:
made it until 160.1 mb mark, stops n says updte fail n displays no intrnet cnnction
your help is greatly appreciated
p/s; im from mlaysia , i lOVE n grew up with sony
Unfortunately the problem isn't solved. Installing an old version of SEUS (SUS) istn't helpful. After installation the SEUS software gets updated to SUS and the problem is the same: "already latest software installed" but it's only 2.3.7 !?
best regards
correct 
What do you mean with "correct" ?
That I had the same issue u had
Ok. I thought you could update after "new" istallation. It's too bad that no one could solve it!
I just got the update via SUS. but first i uninstalled the SUS then restarted the pc and the downloaded the SUS again from the link RelesSony posted here. and it worked.
I suspect it may have to do with your internet provider. It seems that connectivity is crucial and if there are too many users tapping into yoor bandwidth,you may experience disconnection from the server. Suggest you try at odd hours to see how. Happens to IOS upgraders too. Not unusual.
Please you need to download the last version of SUS.
Version: 2.11.12.5
Is in that link.
Give full uninstall of SUS, restart your PC and install the newer version of SUS.
When you install it the SUS will update for a newer version that cannot been downloaded. Wait and try to update ICS. Please post the result's.