David,
We don't have a PinIt button yet. We're hoping to add that with the 5.0 release, due out in ~January. There will be a tag and the ability to automatically add it to your articles, just like our current social buttons.
As for the vertical buttons, if you add the following to your CSS file, it will make the buttons show horizontally:
.jlinkedShare, .sc_twittershare, .sc_gplusone, .jfbclike { float: left; }
Hope that helps, but if you have questions, just let us know.
Thanks,
Alex