MiKuS

you would also send mails with the php mail() function.

We wont write code for you, but will push you in the right direction.
Here is a step by step process to doing what you want:
1. Create a form in html to accept the information you'll need
2. Once the form has been submitted run a function which will email the results to a specified person(s)
3. Insert the information into a database
4. Make a page which pulls hte information out of the database and displays it.

In between these steps there will be more smaller steps - see if you can figure them out.