Extend Virgin Media Fibreoptic

So the SuperHub current sits in my living room but I'm getting very poor coverage upstairs. I can only use it in one corner of my room

I was looking into getting a longer COAX cable so I could position it upstairs.

However I was wondering if anyone would be bale to tell me how to use my old EE Brightbox router as an extender or access point please

Thank you

Not the same kit but the principle is the same to turn the Brightbox into a simple wireless access point i.e. use an ethernet cable from superhub to one of the Brightbox lan ports

http://www.coolwebhome.co.uk/wap/configuring-wap.html