Thanks Jackie_w, it's starting to look very good! And OOo's chapters and TOC are handled perfectly!
The only thing that isn't quite right is the cross-referencing. When I reference a page number using OOo's cross-reference function, it displays as a blue "1", but when I click on it, it jumps to the right place! This is apparently a problem with the OOo to HTML conversion - the simplest thing is probably to change the '1's to something non-specific, like "here". Has anyone run into this - and maybe has a better idea? Thanks again, Jackie_w!