BTW: in connect.php for the liveid, the following line:
$liveid_return = SOCIAL_CONNECT_PLUGIN_URL . '/liveid/callback.php';
seemed to have problems… when I put the absolute path into the quoted portion, I was able to get the liveid icon to show, and it appears to authenticate.
HOWEVER, it still doesn’t create the account properly, so the liveID support really doesn’t work (for me).