Not Found error

WordPress: 3.3.1
MAMP: 2.0.5

I followed these instructions until step 4.

Then I used this video to install wordpress on MAMP and get everything set-up. I followed all the instructions but when it came time to go to the wordpress install (wp-admin/install.php) I got the following error:

Not Found
The requested URL /invoke was not found on this server.

Anybody know what I’m doing wrong?

-Thomas