Kamil,
Everything is printed on a single page, and therefore document is neither readable, nor usable at all. After ps2pdf I can just see the last page...
Here's a section of your book attachment. Note the // that I added below, just before the Preface. I think that's what you're missing. See the section in the Lout manual on Books for more info -- it's just a required symbol.
@Book
@Title { Tytu? pracy }
@Author { Autor pracy }
@Publisher { Wydawca }
//
# -----------------------------------------------------------------------------
# Przedmowa
Hope that helps!
David