I think it looks like your trying to load your background into a cell or a coloum/row you need to load it to the main background
Step 1
Click the layout tab
Step 2
On the left there is a section called screen controls select click "background" and a load box will appear.
Step 3
Select the desired background file, then check the box that reads Override all background colours (this will turn off all the formatting to backgrounds allowing you to see through to your background then click ok
Hope This Helps
Gary