Brake questions?

[CaliforniaNicco]

Sorry if you've seen too many threads like this, but I need major help.
I currently have some Hayes mx4 disk brakes. They work perfectly for me, but I'm switching out my fork. I am looking at a manitou sherman or minute, and I don't know whether they have adaptors or if the brakes will even fit? do I need to worry about rotor size? Any other info that would help me? Are there special adaptors for different rotor sizes?

Thanks,
Nicco

[vk45de]

No adaptor req for 6" rotors. 7 and 8 inch will need adaptors