I did read that but it still isn't clear to me. I'm sure what I'm looking for in in your post but I just can't work out which part is relevant to me.
A graphical representation would be a great idea - I did see one somewhere (maybe in the x-cart manual?) but it only had a limited amount of information on there.
Sometimes it's hard to explain what you are looking for (or by the same token realise that what your seeing is what you're looking for) without knowing the in's and out's of what is, lets face it, not the simplist of software's to learn about.
So to put my theory into practice - this is what i'm looking for!
http://www.wyzeshop.com/screenshot3.jpg