LAMP is "Linux Apache MySQL PHP".
WAMP is "Windows Apache MySQL PHP".
You will need one of the WAMP packages such as Wamp Developer (commercial), Xampp (free), WampServer (free).
Then you'll need to add your previous website files into the DocumentRoot of a VirtualHost and use phpMyAdmin (or the mysql command line) to import your database.
If you change the database name or user or password, you'll also need to edit WP's wp-config.php file and update that info.
Also, WampDeveloper can install WordPress for you automatically, which means you might be able to just import the previous pages/posts/comments if you use the native wordpress export/import abilities (to and from an xml file).