You will need to use JavaScript for changing the title of the website based on the page.

Put this code at the top of the page

<script type='text/javascript'>document.title = 'Change this for the page title';</script>

We are actually building an open source PHP framework which includes features like this using a simple method call. You can check it out at https://github.com/SonarSystems/Web-Framework 

Also if you have anymore questions please don’t hesitate to post them, no matter how simple or complex they maybe. There is no such thing as a stupid question.