Yo .. all
CS have told me that the Ambit 100 (which I have) is no good with the 10Mbit upgrgade. I now have the upgrade but they have told me I should not have been given it earlier today. It seems that they are all in a bit of a mess - I should have only been given the upgrade by an auto procedure after my modem had been upgraded. I then asked for a modem upgrade now and was told 'no can do' - since its working working fine with 3Mbits and thats all you should have at present ..
hmmm
p.s. (my modem configs are upgraded but I can get no more than 3Mbits download - but 512Kbits upload)