try this

I add news part to 2.5 htaccess news is ok .

I can't understand what are you doing What's your site url?

Problem is going on with that. Site url you know is memht turkey http://biztr.net/memht

Have you changed the RewriteBase / path?

RewriteBase /memht/

Anyway as i can see, your modrewrite is working correctly and with the 2.9 definitions because i see mod rewrite urls present in the 2.9 ONLY as articles-read-w... news-w... etc

i add some parts of 2.9 htaccess file to 2.5 htaccess file. But when i use 2.9 normal htaccess file i have problem.

Could you upload your .htaccess file in a text format plz?

I upload all you send but nothing works in our site. Server administrator write me and work.

MESSAGE FROM HIM :There were some Rewrite rules in the .htaccess file on the memht directory, which was throwing preventing the site from being loaded. RewriteRule: cannot compile regular expression '^guide\-w\-(.+?)\.html$'n

Use this then

It seems your host support only strict regex

Note: the expression is guide-read-w and not guide-w... upload the mine htaccess version (last uploaded, post 1210) because your is completelly wrong, you messed too much with it