HTTP error 0 testing not serving php pages please help

Hello everyone,

I am using DWCS3, the free version of MAMP on my MacBook Pro Leopard 10.5.6.

I have built a customer registration form with a Transitional <!DOCTYPE>. I have been following the instructions from The Essential Guide to Dreamweaver CS3, using a wizard to build a registration form, in chapter 15.

When I try to preview the form in the web browser, I get a white screen.

When I click the live data button I get an; HTTP error 0 message occured while attempting to request the file http://localhost:8888/mywebsite/page_S9INUKZB.php from the testing server.

possible reasons:

1. Files in MacHD/Applications/MAMP/htdocs/mywebsite with .php extension are not being executed by the testing server.

2. The MacHD/Applications/MAMP/htdocs/mywebsite does not map to http://localhost:8888/mywebsite URL on the testing server.

I've gone over the site definitions several times and have configured MAMP differently twice, using ports 80 and 3306 and also 8888 and 8889. The same problem has happened in both instances here is my site definition info:

Local info:

Site name: mywebsite

Local root folder: MacHD:Users:myname:Desktop:mywebsite

links relative to document: http://localhost/

Remote info:

Access: Local/Network

Remote folder: MacHD:Applications:MAMP:htdocs:mywebsite

Testing server:

Server model: PHP/MySQL

Access: Local/Network

Testing server folder: MacHD:Applications:MAMP:htdocs

URL prefix: http://localhost:8888/mywebsite/

Web sharing is turned off.

Dreamweaver/Preferences/Preview in browser/preview using temporary files is turned off, yet in my HTTP error 0 message there is a string of characters after the page name, suggesting that dreamweaver is using temporary files.

I have attached a compressed copy of the customer registration form maybe the problem is the page. I have gone round and round in circles with this and I can't seem to sort it out can somebody please help me.

Thankyou.