Topic: organising my html files...

I'm fairly new to dreamweaver and I've built a jewellery website displaying 5 categories of jewellery:
earrings.html
bridal.html
bracelets.html
necklaces.html
misc.html

then the nav menu:
index.html (home page)
about.html
services.html
catalogue.html

After reading FAQ#11 (How do I insert SimpleViewer into a pre-existing HTML page) it said to Copy the contents of your SimpleViewer gallery folder into the folder that contains your HTML page (including the swfobject.js file).

Since all these html pages share the same root folder, this is where I fall into confusion/trouble in organising my files.

What do I do to keep each category and it's files in it's place without losing all my links on each category page?

Thank you so much in advance!
Maya