CSS file instead of embedded in code

I have been playing around with this module a lot, and plan to go live with it soon for our new books list. It's a fabulous module and it works REALLY well. One thing that I am finding really difficult and frustrating, though, is that you've embedded a lot of the css directly into the module file -- styling elements within millennium.module itself. As a result, I cannot override the css and give it my own preferred look without editing this file. AS a result, next time I do an update for a new version, my styles will break until I have time to do all that work all over again. Most of the modules I work with include style IDs and classes within the module, but use a separate stylesheet, included with the module, for styling. This way, I can override the styles within my theme and I don't have to redo that work with the next update. If you'd be willing to change this, I'd be happy to help if I can....