Mick, the plate is a BT NTE5 and is called a Master ADSL Adaptor.
The place to get the new socket is:- http://www.kitz.co.uk/adsl/socket.htm
Here you will find all the description and the instructions of how to do it, download the instructions (4 pages)
There is a need to disconnect the original BT plate and then put the cables back into the new one.
It is also desirable to disconnect the bell wire. It is all explained in the sheets.
If possible get an insertion tool for the cables.
One thing, is you will need longer screws for re-attaching the new plate, they will need to be about twice the length.
You will also need to put the router close by the socket and then run an Ethernet cable to the location of the PC.
This is not a big job but the cabling /Ethernet run may take you all over the house like mine did.
Clive
Edited By Clive Hartland on 10/05/2012 08:11:59