I installed the free version on 5.0.5, and I'm not getting a Twitter icon or an AddThis icon (although I don't care so much about the latter). I do get a "Tweet" link though. Do you have any suggestions?
Here's what it looks like:
http://i.imgur.com/K2SCeC4.png
Thanks!
EDIT: Ok, I figured out why I'm not getting any buttons. Our site is https, and the icons are blocked because they are using http. Would I only need to search/replace http->https in the xml file?
EDIT2: Yup, that fixed it.