Iveth,
Can you set the "Show Faces" parameter to "No"? It looks like Facebook may be having an issue with the box-count view if that parameter is enabled (which doesn't work in that layout anyways).
Iveth,
I see you put another Like button up there. Did you change any settings? The new module is re-including the Facebook Javascript library though, which may cause other issues, just so you know.
Sorry for the troubles. If you want us to look into it further, just let us know. We'll need to see the original code on the page again to understand what's going wrong though.
Iveth,
To get the LinkedIn Share button to show, can you try re-ordering the JFBCSystem and JLinked System plugins so that the Jlinked one is before JFBConnect (lower number)? Hopefully, that should fix that issue.
We're still looking into the IE9 thing.. sorry for the troubles,
Alex