[l2h] problems with book class

[Vadim Yu. Radionov]

Hello!

I have to convert several books to html, so i tested segmented report
example in L2H distribution (v99.2b8) with only \documentclass changed to book
and section to chapter in \segment's second argument (and \subsection
to \section in sec1.tex) 

Several things came wrong:

-- Table of contents, List of figures and Index have lower level with
respect to chapters in child list,

-- Index appears before chapter, not after,

-- Contents node lacks Chapters (only Contents, List of Fig. and Index).

-- subsection (now section) number is 3.1, not 1.1

And the last two occurs even without any changes in distribution!

Which are bugs and which are features?

Vadim