Hi Yakov,
Actually, it IS working, kind of. Try this:
http://www.rusmedserv.com/forums/forums/
But, there are a few things that aren't working as expected.
(1) I was assuming that you would place the forum.php and .htaccess files in your main directory, not in the forums directory. (You can put them in the forums directory, but you'll need to change the code a little bit.)
(2)
Important note: "Versions prior to PHP 4.0.5 do not handle HTTP redirects. Because of this, directories must include trailing slashes." Your server appears to be running PHP 3, so the trailing slashes aren't being handled correctly.
(3) For some reason, URL's such as
http://www.rusmedportal.com/forums/archive/5/ are actually returning a 404 code (even though they display the document), so PHP does not display the document. You can verify the 404 code using
WebSniffer.
(4) The links in the rusmedportal.com documents start with a slash, so you end up with an extra "archive/" in the URL. You can deal with this by changing either the PHP code or the mod_rewrite code.