"Facebook Page Publish" publishes your blog posts to your Facebook profile or page. New fork updated for latest wordpress and facebook.
Not possible. See Facebook Platform Policies, IV:
IV. Application Integration Points 5. You must not provide users with the option to publish more than one Stream story at a time.
This also makes a great excuse for not having had the time to implement such functionality.
Also not possible, at least not the expected way without additional "published via Application XY" notice.
This plugin requires php5. Sometimes you have to add
AddType x-mapp-php5 .php AddHandler x-mapp-php5 .php
to your .htaccess file.
This happens from time to time. Give Facebook some time, they will fix it shortly.
Please post your question in the forum, I will try to reply shortly.