I'm using xsi 7.5 and when I click and hold a bone, and turn it on it's x axis, then let the mouse button go, it snaps back to where it was. Even when I type in the desired number in the little box on the side. It snaps right back to zero. Z and Y axis's both work, but not the x axis. Any help would be appreciated. I already checked for constraints(I'm not sure if I did it right though, but I haven't added any constraints to the whole skeleton) and I searched google but found no answers.

That is because the Blend mode for the bone chain is set to IK (1) to rotate bones individually you need to change the Blend mode to 0. Select the bone and open it's property page and change the Blend mode.

Look in the help file under IK/FK animation.

It worked! Thanks a ton!