3
for the most part the themes do work but I have noticed a lot of the new modules are not following the standard and you have to edit the template with the proper class from the css files to match your site.
You can do this one of two ways.
Edit the modules template sheet itself then install
OR
install the module then edit the template files in the template manager in the admin sction of the site.
some templates don't have a class value for certain parts like the CCB forum has a class code that my theme template does not have to change the back ground of the hover / drop down menu. I have spent many hours doing little tweaks here and there through out my site to list them here, but it has been good for me so I know just where everything is when I need to edit it later.
Arowana