Absolute Beginners htaccess
 

I have the following setting and it is not working.I have studied many tutorials on .htaccess,but they didn't help at all.

First about the locations of directories.
////////// DIRECTORIES///////////
D:wamp/www/sitename

sitename -> .htaccess
sitename ->..htpasswd


The files
////////// FILE ///////////
---------------
.htaccess

AuthUserFile .htpasswd
AuthGroupFile /dev/null
AuthName EnterPassword
AuthType Basic
require user wsabstract

.htpasswd
htuser:htpass

when I open the index.php.As I enter I get the error number 500.
or even when i cancel it.

Thanks in ADVANCE.

AuthGroupFile needs to point to the directory location of the corresponding htpasswd file.

AuthUserFile "sitename/.htpasswd"
AuthGroupFile "sitename/.htpasswd"
AuthName EnterPassword
AuthType Basic
require valid-user

And it is still not working.It is the error 500 I get.
For AuthUserFile and AuthGroupFile I tried even "http://localhost/sitename/.htaccess" and "www/sitename/.htaccess"

Can anyone send me a zip containing these files Please.
It will really appreciated.
here is the Url I uploaded.
__http://rapidshare.com/files/198818523/sitename.zip.html