OCX Develompent - Label stays "behind" the OCX in a Form

Hi,

I'm developing an OCX (a Command Button), called Button.ocx
Then I create the Button.ocx and put it in a simple Form to test it. When I put a Label over this Button, the Label stays "behind" of it.
This is the second OCX that I developed and both have this problem.
My OCX is composed only by the UserControl and a Label inside of it.

How can I avoid this? I need the Label over the Button...
Is there any property that I should set up to solve this?

Thanks for any help...

Michel Jr.