url problem with some of the component tree mosets

I have several pages that do not work like this:
www.tregima.it/mtree/New_Listing/1.html
www.tregima.it/mtree/most_rated.html
while this works:
www.tregima.it/mtree/Popular_listing.html
Why?
where mistake?

It's up to the extension for mtree or router file. You should contact mtree author about that.

It's up to the extension for mtree or router file. You should contact mtree author about that.

This was the response of the support mosets tree ....
Hello Stephen,

  We currently only support Joomla! 1.5 core SEF URL only. We are not supporting any third party SEF extension for Joomla! 1.5.

Best regards,
Lee Cher Yeong
nobody can give me some help?

Well then it's again up to them because you would get the same thing with core SEF. SEF Advance only uses router.php for core SEF. If you turn it off you will have the same URLs.

Well then it's again up to them because you would get the same thing with core SEF. SEF Advance only uses router.php for core SEF. If you turn it off you will have the same URLs.

But no, because if disability sef advacen then everything works perfectly
new url is:
www.tregima.it/component/mtree/New_Listing.html
www.tregima.it/component/mtree/Most_Rated.html

Send me the admin access and FTP info and I will take a look.