Click the "Edit HTML" button beneath the theme you wish to change. The theme's HTML code appears. Search for "" in the HTML code. Move up a line or two and find "." ...

Google says images styled with CSS won’t be indexed in Image Search, advising developers to use HTML tags for important ...

I added to the end of my line: background-repeat: no-repeat; and also noticed that my layout table is 1029X something so I changed it to 1029X768 and the repeated image is now gone.

Click the "Background" tab and select "Graphic" from the "As" menu. Click the "Browse" button, select your background image and click the "Open" button. Select a graphic option in the "Type" section.