Does anyone know if i can change an hope pro 2 from singlespeed to 10 speed

You can’t.You can however get 7/8 sprockets of a 10sp block on it.

http://waltworks.blogspot.co.uk/2009/10/this-one-goes-to-11.html

Hi mate thanks for that, but ive just removed the hubs from my sons 24″ jump bike wheels and on closer inspection it has an a2z single speed kit on it. Does this mean its not a single speed hub?

sounds like a normal hope pro 2, the single speed version has a very short cassette body, less than inch long, usually comes with 3, 5mm silver spacers

Yep, if its got an A2Z kit on it, sounds like its a ‘normal’ rear hub.