New Install on Windows 2008R2 problems

Hi.. I am new to web site and have just installed the win2k8r2 version and followed the procedure (http://arencambre.com/blog/2009/08/18/gallery-3-windows-2008-r2-and-iis-7/comment-page-1/#comment-42789) but when i try to follow item; 6.Visit http://localhost/phpmyadmin, sign in using your MySql’s root account it fails to load the login page giving the following error:

Error Summary
HTTP Error 403.14 – Forbidden
The Web server is configured to not list the contents of this directory. Detailed Error Information
Module DirectoryListingModule
Notification ExecuteRequestHandler
Handler StaticFile
Error Code 0×00000000
Requested URL http://localhost:80/phpmyadmin/
Physical Path C:\inetpub\wwwroot\phpmyadmin\
Logon Method Anonymous
Logon User Anonymous

I did post this and another error on that website that I was directed to from the procedure page,

I continued with the procedure and tried to import the rules but what ever i place in the window it states its invalid I did try a line at a time but nothing was accepted from within the ‘htaccess file what should i keep/remove?

an you help please