You are getting your terms a little muddled up
To start with there are two common meathods of delivering broadband into people houses in the UK,either ADSL or Cable.
ADSL comes in to your house through your phone line and you need an ADSL router
Cable come in via Cable run by virgin media (or Kingston communications if you live in hull) and to use cable internet with more than one computer you need a cable router.
So the term "cable router" refers to it being a router that is used with virgin cable and has nothing to do with if it's wireless or not.
Both a Cable router and an ADSL router can then be either wired, or wireless depending on if it then has a capability for your computer to connect the the router using wireless, or if you can only connect your computer to it using a Ethernet cable.