your page is missing the link to the js and css files for the social media buttons:
<link rel="stylesheet" type="text/css" href="webassist/social/wasocial.css"/>
the placement of the buttons depends greatly on the container you place them in.
you have added the buttons to the side bar container which only offers a width of 180px, the buttons will not be able to expand horizontally past that width.
If you want the buttons to expand horizontally, you will need to place them in a container that allows enough space for that.
the icon sizes are set in the webassist/social/wasocial.css file, to adjust the sizes, you will need to adjust the CSS