First off, I have Office 2010 and I have a word doc that I'm struggling with a layout issue and need some help.

The issue is that I have a Wedding program that will be printed on 8 1/12 by 11 paper turned horizontally so I can fold the page so I have a front cover page and a back page. Where I'm having difficulty is that I wish to insert a JPEG file as the background of the cover page but I would like to overlay the picture with text but I want the background of the text box to be transparent. Right now I can create a text box and position the box with the text inside over the picture just fine but instead of the background of the box being transparent, the background is a white box. I've tried numerous things but nothing seem to allow me to make the background of the text box to be transparent. Can anyone help me? Thanks