Xara Xtreme 4, windows XP SP3

Can I take an image and make it sewn to the background? I'm using Xara Xtreme 4 (not pro). The reason is that I want to have an image OVER which I place various objects. But I am routinely selecting the background by mistake and moving it. It would be nice to do two things:

1. (as I said) lock/sew/staple (what's the term?) an image to be the unmovable background.
2. This would obviously require me to size and crop the image first to be the page.

Thanks!