[Plugin: WP-FB-AutoConnect] Wp_fb connect plugin not showing 'connect with facebook' butto

i Friends,

I’ve installed Wp_fb plugin but it’s not showing ‘fb’ option in the log-in.
In the plug-in it’s showing some error as ‘connectivity issue with facebook’.
I’ve tried by disabling other plug-ins and also by recreating the app again.
Even didn’t receive any answer from official plug-in site.

Also tried other plugin but the same problem persists.

Ideally I wanted to use something like ‘Google Friend Connect’ where my visitors
could register for my site and become members with large database of google.

Please refer any other alternative if you have.

I’ve tried ‘linky followers’ which does not feed up my objective as this is primarily for blogs.

Any help will be highly acknowledged.

Thanks,
Sudeep

http://wordpress.org/extend/plugins/wp-fb-autoconnect/