Basically i've just bought a new PC. Tried to get it to go on the internet last night via Ethernet and it just won't work. Go to Network Connections > Create a new connection > Connect to the internet > (Windows advised i go to set up connection manually with broadband) > Connect using broadband connection thats always on > Finish and there's no new connection
I've tried most things on the Create new connection wizard
You said that you have two machines networked, so obviously you don't need 4 LAN ports. The problem is that the D_link is a standalone router - it doesn't have an inbuilt ADSL modem.
I'm not sure how you arrived at this configuration because you've spent money needlessly - you would have been far better off either buying a wireless ADSL router which has four LAN ports anyway, or a standalone ADSL modem and using it with the D-Link router.
Whatever you decide, you shouldn't be using two routers - ditch the Voyager and buy an ADSL modem for the D-link. Otherwise, cut your losses and ditch both routers - then buy a Netgear of Belkin wireless ADSL router. They all have four LAN ports on the back.