Can anyone please tell me where i can buy replacement blades for adidas predators?

I bought a pair of white adidas predator accelerator david beckham champions league soccer boots 4 years ago. Now i need to replace all of the blades. The're not like the new ones cause the ones i need have to be screwed in! Can anyone help?|||im from newcastle but the best place round here for replacement blades or studs is jjb sports, not only that but they are the cheapest!