A little help in studio & lighitng please?

I won backdrops and background supports on ebay... now for the big question, which i posted in Studio & Lighting! I couldn't find my answer on the web.

You may find some useful info right here on PR... http://photographyreview.webphotoschool.com/
Alot of the time I use natural light :)
Here is one example... http://gallery.photographyreview.com...&ppuser=246535