Well what we have at the moment is a splitter in the main phone point in the lounge. From there comes a phone cable thru' the attic down to another junction box on the wall next to the PC, where the phone cable comes out of there to the modem (about 3m).
What I was going to do was have an RJ11 cable out of the main phone point like it does now, run it as far as it'll go, add another RJ11 cable if i need to, then plug the modem in.
AOL isn't supplying us with any cabling, modem update information or assistance as it's nothing to do with them so we're a bit stuck!