I opened up MAMP and it seems to be working. I get two green lights on the Apache Server and MySql.
When I put the address into my browser, I get "Text index page" which is what I have created myself.
Although now, there is a difference, I just get an error message of "An unidentified error has occurred" (without any follow up message when I press OK). This happens when I try to select a database in the My Sql Connection panel.
thanks so much for your help.