Newbie - web site now gets 403 Forbidden - Access Denied

Hello All!      Here is the newbie again.  This is on a Windows 2008 server running IIS 7. 

Ok - using WoprdPress -  used 2 WordPress plugins to change the URL's and database to be mywebsite.com, and created a new website in IIS for mywebsite.com.

Now when I try and go to tthe site on the server by url http://mywebsite.com - I get the error - "403 Forbidden Access Denied - You do not have permission to view this directory or page using the credentials you supplied".

What did I do - and how do I get it functional again?  I have gone over google searches, and cannot find anything relevent. 

HELP oh WordPress and IIS guru's...

Greg