Makes your life easier by automating the mundane tasks of writing blog posts, so you can focus on the content.
You're most likely using the other shortcode, amt_override, as well. If you do this, the no_more shortcode is ignored and will still show.
Quite possibly. Auto more tag was a great plugin, which spawned this automation suite. But, with the installation of this plugin you can simply deactivate Auto More Tag, and setup the Auto More Tag module with the same settings. It is an updated version of that plugin.
You most likely do not have the PHP cURL extension installed on your server. This is a requirement for the Auto Tagger module. You'll have to install this yourself, or if you do not have direct access to PHP, you'll have to ask your server admin to allow you access to this extension.
That would be [amt_override]. Something to note, though, if you have the option Ignore Manual tags to true, then you can place as many of those short codes as you want, and it will ignore them all.
Post pagination has to be setup in the theme itself. Some themes ignore this, and don't include the required function call in the post page. Try adding a function call to your themes single post page, in most cases that is single.php page.
It is quite possible that the theme you are using has purposely stopped any more tag use. To test this, you can change to the default WordPress theme and see if your posts show short there. If not, please contact me.
Intelligent Placement is a method of searching out the best placement for the tags. It does this through an analysis of the post, and finding a proper break point, which you can define as either an End of Line or a Space.
If you do, you should probabley email email@example.com, or visit http://travisweston.com/portfolio/wordpress-plugins/wordpress-automation-suite/ and post it in the comments!