phpwebsite not working with Wampserver
 

hi all I have installed Wampserver 2.0...
It is working correctly... but when I place the files of phpwebsite 1.6.2 in the www folder and load the file I get following error in the browser..

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, admin@localhost and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

Please help me out...Thanks in advance