So, you can pull full deflection, and the elevators just don't work? Have you gone into the "map controllers" screen, selected the axis, hit the "advanced" checkbox, and watched as you move the stick?
Does the green marker on the axis slider move all the way up and down?
There's a chance it might just be a setting, but there's an equally good chance the stick is going. You have one of the lowest quality and shortest-lasting brands out there. I know. I've had them before too (many folks here have).
We can help you to see if it's just a setting or not, but I think I need a better description of what the problem is.
EDIT: Oh, this may sound obvious, but calibrate it in windows. See if it moves around properly in that screen. Then once done, calibrate it inside Aces High, as well!