As far as I know, the extension is compatible only with WP up to WordPress version 3.0.5.
It would be great if someone took the effort to update the code to the more recent
Wordpress versions.
The source code is at http://ww.wp.xz.cn/extend/plugins/wpec-goodrelations/developers/
I could promise assistance with regard to the GoodRelations patterns and also have the email contact of the original developer, who would for sure be willing to explain original design decisions.
Feel free to contact me at mheppATcomputerDOTorg.
Best wishes
Martin Hepp
