Zen Cart Easy Install

When you start MAMP up, do you get the welcome page?

Eg:

Welcome to MAMP

  	If you can see this page, MAMP is installed on your Mac and everything is working!

To see the PHP configuration, you can watch the output of phpinfo.
Here you can manage eAccelerator.

The MySQL Database can be administrated with phpMyAdmin.

To connect to the MySQL Server from your own scripts use the following connection parameters:
Host: localhost
[Port: 8889]
User: root
Password: root

Note that in MAMP Apache runs on port 8888, and MySQL runs on port 8889, by default.

Also note MAMP is using MySQL 5.019 - AFAIK Zen is not certified for MySQL 5.xx yet, although other people might be able to advise you about that better than I.