Yeah, I'm not too sure why you saw a different version. I don't know if it's a caching issue because those service codes aren't something we update once we release a new service.
If you're still having issues positioning the buttons, you should be able to target the specific button by inspecting the element and adding/removing padding as necessary. And to disable the share preferences and hardcode specific services, you will need to use the custom button option are specify the services like this:
<a class="addthis_button_facebook" style="cursor:pointer"></a>
<a class="addthis_button_twitter" style="cursor:pointer"></a>
<a class="addthis_button_email" style="cursor:pointer"></a>
I hope this makes sense. If you still need help, just let me know.