How to stretch your background

I use PSE9 to edit.
Open you image and select the area you want to stretch with your Rectangular Marquee Tool.

Then you select your Move Tool and click once in the selected area.

Then simply just place your mouse over the little middle box tot he right (until you get a double sided arrow) and drag it until you fill your background.  Click on the green check mark on the bottom and repeat on the other side.

That's it!  If you have any questions, feel free to email me at heavensent_photo@yahoo.com  :)