Setting up my Xbox

[#1]

I have to say a big thank you to the Plusnet team, received the router this morning and now up and running.  Just brilliant.  I have setup my wireless printer and linked up the Xbox.  Now I am having trouble setting up the Xbox to link with the computer.  Have done the numbers on Windows media but it can't find the extender.  I have looked at the system setup on 192.168.1.254 and found that the network isn't showing what I thought it would.  Please see image attached.  How do I proceed to get them all talking to eachother?  Thanks for reading and thank again Plusnet.  Always tell everyone how good you are.

[#2]

I don't know the answer but can I suggest you modify the image to hide the mac address of the unknown device which I assume is the Xbox

[#3]

I hadn't thought of that - stupid morphined brain I have!  How can I delete this as I have looked and can't seem to redo it
Ahh Done it will do another as I am 100mg over what I should be! See attached new image - hopefully nothing given away

[#4]

Well have now got a bit further, but no interaction between the PC and Xbox!