Sorry if this is in the wrong section, new here!

The problem I'm having is with my nokia n900 not updating firmware ota!

I first got the phone when it first came out, used it for a week or 2 and left it, until last week I decided to use it again!

Now the current firmware I'm on is
V 10.2010.19-1.205.1
Rx-51, Nokia N900

I have rootsh installed, have a few respitorys installed ie maemo extras, testing devel etc. I have disabled all of them except software update but still doesn't show a update for the phone!

However for some reason Nokia System Software Updates isn't updating when I click update?

I have tried on X-Term as well, but still it doesn't update firmware OTA!

I have tried ' sudo gain root, apt-get update, apt-get upgrade' but still no joy!

I haven't got my laptop with me so can't update on desktop, can only update ota!

The only reason I want to update is because I want applications such as Twitter, Opera but I can't on this current firmware!

Tried a post on 'prodigits' and it was suggested to try here? Any help would be appreciated!

Many thanks!