OKay....

[shuyin1234]

I havent played FFX in about 2 years, and i forgot everything!
how do you use the sphere grid, how do you get the overdrives for your characters? (not where to find them) i dont know how to explain this. could someone please tell me?

 

[Daenerys]

This, along with all other help topics, belongs in the help booth, so i'll move this there

And there are ingame tutorials for the sphere grid and overdrives, overdrives are explained to you when you start the game with Auron and Tidus...

 

[Gippal1]

The sphere grid tutorial is the best place to look.
Also when you say overdrives are you on about actual overdrives or overdrive modes?

 

[Gabranth]

To get new overdrives, you must use them a certain number of times to unlock the next.

 

[Bambi]

Can't you like, use the tutorials or read the game manual....?