Format the checkBox Glyph with an image of 25x25

Hi,
I need create a CheckBox control .In this I want the checkBox Glyph with an image of 25x25 over it and the text should be displayed as it is,The behavior of the CheckBox control should be as microsoft check box control.
So how to format the checkbox glyph???
[270 byte] By [psp] at [2008-2-21]