Sounds like you've got a case of curled toes and a case of splayed leg. Both are easily fixable
For the curled toes, cut a piece of cardboard or bandaid a little bigger than the chick's foot. Arrange its toes on it in the proper orientation, then tape them in place using a strip of bandaid. Leave it on for a few days and the toes should straighten.
For splayed leg, use either a bandaid or a piece of vet wrap (vet wrap is better because it'll be easier to remove) to hold the legs together in the normal position. The chick might have trouble getting around like this so you'll have to keep an eye on it and make sure there's marbles or something in the waterer so it doesn't fall face in and drown. Leave that on for a few days and then take it off and the legs should be fixed. If not, re-bind the legs.
You need to do both of these things ASAP because you need to get it fixed before their bones harden or it'll be permanent.
What substrate are you using in the brooder? Splayed leg is mostly caused by the chicks living on a surface that they can't get good traction on.Edited by Pyxis - 5/15/16 at 8:09pm