phpbb SEO mod rewrite problem

The problem is that when I visit as a quest I can only see the first page of each thread.

In this forum the second page of a thread ends like this:
about1234-10.html

In my forum, the page links and the "next" link to pages like this:
about1234.html&postdays=0&postorder=asc&start=10

but this is always the first page of this thread.

If I manully type the URL like this:
about1234-10.html

then it takes me to the second page.

I folowed all directions in both the A2K mod 2 and the phpBB static URLs mod_rewrite 1.