I Am Having Trouble With Joomla, I Have Downloaded It, And Extracted The Files, Now I Dont Know What To Do, Pl?

Joomla is a content management system which uses PHP. So you can create a website using joomla.
Here is the document to how to install it:http://help.joomla.org/ghop/feb2008/task…
1. Install Apache server
Download the XAMPP installer for your version XAMPP
website: http://www.apachefriends.org/en/xampp.ht…
2. After downloading XAMPP isntall it
3. Start the Mysql and Apache service
4. Now extract joomla in to the htdocs [...]

Can A Joomla Website Work Without Having A Database ?

no, joomla is entirely database driven, joomla website without a database might as well be any ordinary static html/css website.