So I tried the software update, using the Windows wizard and the latest update version on the Nokia site. I get about 75% through the update and I get the message "Could not write to the device. Code 7" (or something similar).
Looking on the Nokia support site it says that this error happens when you first run the updater and that I should simply try again. However, after restarting computer etc. and trying again I get the same error.
Now my 770 is dead (just shows the white Nokia screen).... and I don't know what to do.
I would be willing to try to install another update (an older version) to get the 770 working again, but would ideally like to install the newest version.

Any suggestions?? Any help appreciated as otherwise I have to contact my "nokia service center" which is probably going to be staffed by underpaid teenagaers and involve sending my 770 away somewhere (seeing as I only got it yesterday, I really, really don't want to do this).

While I know my way around a Windows computer I have no idea about Linux or Debian so any advice should be targeted towards this.

Thanks for any help