I don't know of any sites that have how tos on using Quark for scrapbooks. I was in the same situation of not knowing what to do and wanting tutorials. I used Photoshop to make a scrap book for my daughter's class. It is simple but perhaps these pages will help.....
http://www.casmaran.com/ScrapbookBrigand1.htm
There are lots of places on the web where you can go for "inspiration". Take a look at the places that sell scrapbooking papers (acid free), scissors, albums etc.
Then.....write a tutorial on how to use Quark for scrapbooking so that we all may learn.
Cricket