how to integrate php-openid library?

I've used this one: http://openidenabled.com/php-openid/
As far as I remember, it worked out-of-the-box. I have a working copy of it on my server.

in finish.php file below codes:

$sreg_resp = Auth_OpenID_SRegResponse::fromSuccessResponse($response);
$sreg = $sreg_resp->contents();

returns an empty array,no nickname,no email .
it is the same for yahoo and google.

should i use AX instead of SReg? thoes two codes are origenal by php-openid.

hi there
i need some help for integrating php-openid to login process of my site.
has somebody work around it??

Tutorial describes, how to integrate OpenId into your login system in PHP.