So Ive been using Slayers XBMC from 2.7 but its pretty old. I upgraded to Xbmc4xbox and its bare compared to slayers. Are all the drivers and dvd player software already installed on xbmc4xbox? If not, is there a write up on how to configure it? Or a pkg one can dl with all the divx,dvd,photo,etc drivers/software? Thanks.

Assuming I'm understanding your question correctly, the answer is that everything to play/view everything you mentioned is built in.

Maybe you need to read this..? :

http://www.xbmc4xbox.org/wiki/index.php?title=Media_Sources