Help Setting Up A Store Front Type DB

[CStrauss]

This sorta relates to another problem I posted in a diffrent forum topic, But I think alot has to do with the way I set up my database incorrectly. Basicly Im trying to set up my database to work like this store front.Click Here.Now as you can see you click one of the links and it shows more links with sub categories then click on of those to display the items related to that sub cat.Now i never set up a database of this magnitude so im a little lost on how to set up my tables. One tricky part is a single item in the database could relate to many diffrent categories . So product A could be used with Product B And C. Get my point?I been sitting down with a pencil and paper for days trying to figure out the relationship to my tables to achieve the above store front effect. So If anyone can help me get started on how my database should be set up I would appreciate it.Thanks