here, works well with the 3 column template.
Step 1: First things first: you will need to make sure you already have the background saved to your computer, since you will be uploading it later. Just click on the image and save to your computer. If you save to the desktop it will be easier to find, but you can save it anywhere you're comfortable with.
Step 2: Go into your Dashboard and click on "Template Designer". Some people feel that "Picture Window" works best, but I have used "Watermark" and it works just fine. So whatever you think you like best, I guess!
Step 3: Click on "Background", then click the box that shows the current background, and "Remove Image".
Step 4: Select "Upload Image" and then "Browse". You'll want to then find the file picture you saved. Select it. Then click "Done."
Step 7 - Make sure you deselect the box marked "Scroll with Page" or it won't work quite right. Then click on "Apply to Blog".
Ta da! Easy, right?
Also, I would appreciate it if you would add this button for credit.
Just a little thing, really.