Text on Image in vsflexgrid

I'm using vsflexgrid. In my Grid I have to show a button like image as a background of particular cell and have to put some text on it. I wrote like this.

GridTotal.Cell(flexcpText, 2, 1) = "First Row"
GridTotal.Cell(flexcpPicture, 2, 1) = Image1.Picture

But text comes in front of image. I need my text on image. Means I've to show my image as a cell background. How can I do this.?