Whew. I'll try to hit everything you asked, but if I missed something, let me know
* When you create a "Article" object in the Open Graph area in Facebook, they will automatically create some actions.. like "Like" and some aggregations that will automatically display actions in a specific way.
* The reason the Javascript button isn't triggering is because it relies on Mootools for some of it's functions. I tried switching to the atomic template (by adding ?template=atomic to the URL) and mootools was properly being added. So, it seems like your template is forcefully removing Mootools from the output, which is something that JFBConnect needs for triggering actions like you're doing.
That may not fix the issue, but will at least (hopefully) display the blue-box error message that is occurring, which will really help.
Other notes:
* Your 'dig' action is definitely not a built-in Facebook one. You created it.. it's custom.. so don't click that box
* Your dig action should be associated with the article object.
* If you set it to 'automatic' posting and it works, then that means everything is *perfect* in the admin area. Don't change anything other than the manual setting.. at that point, you just need to focus on why your custom button isn't working.
As for the activity view, we'll have to look into that. It seems like the filters are just overflowing because you have a few big action or object names in there. Something we can definitely look into, but hopefully not a killer right now for you.
Keep me posted on the above, and definitely let us know when/where you get stumped.
Thanks,
Alex