Supplementary question:
Does anyone know what password to use with the BT speed tester when your router insists on using one? The instructions are only valid for people who are changing their connection settings in IE; they're no use when your Linksys router refuses to save connection settings with the password field blank!
I have the test username already, it's
bt_test_user@adsl.virgin.net, but a default password would be nice!