When using social icon module in template coffe, in the custom output section.
I recommned using the html mode to edit html source.
Just updated relevant classes with your links e.g.
see below
<a class="twitter_icon" href="http://www.twitter.com/akwoo">Twitter</a>
<a class="facebook_icon" href="http://www.facebook.com/finessence">Facebook</a> <a class="vimeo_icon" href="http://www.vimeo.com/finessence/">Vimeo</a> <a class="myspace_icon" href="#">MySpace</a> <a class="youtube_icon" href="#">youTube</a>