As far as associating it with PHP, it's the same as doing it with HTML. I don't know if it is that no one wants to help, or that noone really knows what you need help with.
If you need help with figuring out how to slice the images, try posting your question at the http://www.adobexchange.com forums.
If you need help with arranging your slices, that's really more of an HTML question using Tables and Image tags. Once you have your layout, you basically just wrap the content around it using your PHP and MySQL (or whatever DB you choose).
I guess I really don't fully understand what you need help with, other than to say it doesn't sound like PHP coding, since you are asking about slicing graphics up.