Customize Text in Radio Button Component

I've created a custom theme/skin for the Flash components (for AS 2.0). Everything is working fine except I'd like to be able to adjust the placement of the text that is rendered with the radio button component.

I've changed the font to Gill Sans in my Default.as and it's working. It's just not really centering on the radio button properly. I'd like to be able to adjust the vertical placement in relation to the button. Is there a padding or margin variable? Where is the x/y position determined?

Can anybody point me in the right direction?

Thanks.