I modified this from somewhere - most likely an example form InfopathDev or Microsoft sample/example site.
It's extra long to make sure it would fit any of my forms - and I couldn't use tile because then I couldn't have the 'top' of the image.
It's intended for A4 forms oriented to the left of the view - table with of 630 (Infopath default) sits a form right in the middle pretty well.
If you wanted Landscape, you could modify accordingly in a paint program, or if you go the extra mile and put a 'bottom' to the page as well after you finish your form layout.