How to get OpenID Attributes and Simple Registration Extension

[qiuzhanghua.qiuzhanghua.gmail.com]

Hi, when I use OpenID and seam Integeration, I can get openid.id.

How can I get email ... nickname, fullname ...?

Does Seam's OpenID include this?

Or I should writer a org.jboss.seam.security.openid.OpenIdPhaseListener like PhaseListener?

Thx!

Daniel