got all excited abt the wheels for £128 but then i checked the detail :-
"Compatibility: Clincher wheels with either Shimano 9/10 speed or Campagnolo 9/10/11 freehub"
The description in the advert is incomplete.
Generally there is no distinction between modern Shimano 8 and 9 speed hubs, so those Shimano compatible rear wheels will take 8 speed cassettes without modification. OTOH Campag 8 hubs are entirely different to the higher speed version.
The question though is whether those wheels, at 2kg a pair, are any better than what you have already if yours aren't worn or broken. For road wheels if you look up Fulcrum's or Mavic's offerings in e.g.
Ribble you will find the next step up are half a pound lighter for say £50 more, which imho is good value for money - to get another half a pound off your wheels you will need to spend hundreds more.