i really need to strengthen these two fingers the ring and pink. are there any excerzises that you have done or are doing that help???? please tell me!!

do hammer-ons with them... just sit there and hammer on until it burns... then comeback to it again later.

I would venture to say that the problem isn't strength, it's control. Gary Willis taught me this cool barre exercise to get my fingers curved and to stop them from flagging.

_5___0___5___0________
___5___5___5___5______
______________________
______________________

Basically, the first 2 notes are barred with your pinky, BUT what you are doing is bending the FIRST knuckle BACK. Your second knuckle remains bent normally. Then you bend your first knuckle normally allowing the open string to ring out. At NO TIME does your fingertip leave the 5th fret on the D string. You just go back and forth between bending & flexing the first knuckle, barring then fretting.

Do it with the rest of your fingers.