DOCBOOK-APPS: simplified DocBk and XSL

If I use a simplifed version of DocBook ( such as DocBk XML V3.1.5.1.), 
will I still be able to use the stylesheets at docbook.sourceforge.net?

 

We're moving the userGuide for an open source 
project from .doc to DocBook xml, and it seems like a simplied version might 
suffice for our purposes.

 

If I knew it were a subset, I would assume they 
would work but since it's a 'simplified' version, I would really like to know 
before doing the conversion.

 

Considerately,

 

Shawn