ive got my truck on jacks out front so any help would be useful...

i got the loaner ball joint press from the parts shop but it wont work for the upper control arm/ ball joint because theres no place for the top of the clamp. ive tried hitting it with a hammer but it wont slide out.
also i have the press on the lower joint but i cant turn it any farther, im bending tools... and the joint will not come out.