Security of DB data when displaying the last record on a goto page

[musicmaker001]

I created a Javascript application that collects user data to calculate a moving quote. (http://economymoving.net/get_an_online_moving_quote.php)
When submitted, it inserts a new record into the database then it displays a personalized moving quote on a new page.
The application also collects personal info (name, phone number, email, address, etc.)

How can I prevent users from pulling up other people's quotes containing all this personal data? I'm new to php and databases.

I am working with Dreamweaver CS5 and phpMyAdmin 5.1

I sure would appreciate any help you have to offer.