my web-site has index.php page, with includes all GENERAL metatags, and has the title. But this file doesn't let me to change the title on other pages while browsing the web-site. Although in page source I could see the specific title of a page, but the browser shows only index.php title.
My questions: 1) if I'd insert titles for each page anyway - would it improve search-ability of my web-site by search engines?
2) how do I change the appearance of the title on not index pages?