How on earth do you get the bugger running like that, them's silly numbers.
BT phoned me and the guy enquired, (in a voice like Buzz Lightyear), "May I take you to Infinity and beyond, sir?' to which I responded "You may indeed".
3 days later a nice young man from BT arrived, changed our main incoming socket wossname for an optical one and were were duly 'infinitised, and have had those speeds ever since. The increase in upload speed has been hugely useful but our BT Vision service (TV) is now excellent.