Glad to be of help
I'd get your webspace backed up a.s.a.p. It may simply expire without warning as ntl eventually update their records. You should, I think, get a new webspace under your new username. That perhaps is the disadvantage of changing your username.
*edit: If you use Outlook 2003 it does have a reasonable spam filter (junk mail). You do need to update the occasional M$ patch for it from the M$ Office website.