wireless extender

[#1]

Hello all.
                Don't know if you can help or not. I have Plusnet broadband and one of their Thompson TG585 V8 routers, I need to be able to extend the wireless range, does anybody know which extender would be compatible? any help would be greatly appreciated,
thanks

[#2]

Hi, pretty much any should be compatible, I'd advise going for one that's wireless N compatible though.