SEO Problem! Can't shown SEO name: field


First of all i want to say i installed so many cs-cart system. I’m not new.

I installed a new one.

I enabled “SEO (requires URL manipulation engine - mod_rewrite or isapi_rewrite)” on addons.

After i try to add new categories but i cant see SEO NAME: section.

i cheched .htaccess file, addons section but i cant enable it.

I’m using other websites on same server and seo works.

How can i fix this problem? Could you share your experiance?