You can straighten curled toes by using duct tape or scotch tape wrapped tight around each toe so it is straight,may take 2 days but will make a diffrence,,How long was it from pip to hatch? I've often thought of making a small "box" similiar to the way and shape you can hold a peachick in your hand,,with it's feet properly under the body and feet actually in the middle part of the body,,I know what your talking about,,kinda looks like the peachick is "sliding into home plate" with it's legs extended forward to the point it cannot balance.if you can mimic the correct position of the legs for 24 hours I would say this can be solved,just as with toes and splayed legs which in my experience all begins because the peachick didn't hatch with 24 hours after pipping,which is now why I help mine out of the shell if they are having difficulty or taking too long.