[thenamesgould]

These alterations so that you only have to enter the username of the various services seem to work fine for me. First of all in memberinfo_block_social:

<div class="friends_mini friends block">
  <h5 class="blocksubhead userprof_blocksubhead smaller ">My Social Networking
  <vb:if condition="$prepared['myprofile']">
		<a class="textcontrol imagecontrol" href="profile.php?{vb:raw session.sessionurl}do=editprofile"><img src="{vb:stylevar imgdir_button}/edit_40b.png" alt="{vb:rawphrase edit}" /></a>
		</vb:if></h5>
    <div class="blockbody userprof_content userprof_content_border">
      <div class="blockrow member_blockrow">
      <div align="center">
    <vb:if condition="$social['twitter']">
<a target ="blank" href="http://www.twitter.com/{vb:raw social.twitter}"><img src="images/postbit_social/twitter.png" onmouseover="this.src='images/postbit_social/twitter_a.png'" onmouseout="this.src='images/postbit_social/twitter.png'" alt="Follow {vb:raw post.username} on Twitter" /></a>
	</vb:if>
    
	<vb:if condition="$social['facebook']">
<a target ="blank" href="http://www.facebook.com/{vb:raw social.facebook}"><img src="images/postbit_social/facebook.png" onmouseover="this.src='images/postbit_social/facebook_a.png'" onmouseout="this.src='images/postbit_social/facebook.png'" alt="Add {vb:raw post.username} on Facebook" /></a>	
	</vb:if>
    
	<vb:if condition="$social['google']">
<a target ="blank" href="http://plus.google.com/{vb:raw social.google}"><img src="images/postbit_social/google.png" onmouseover="this.src='images/postbit_social/google_a.png'" onmouseout="this.src='images/postbit_social/google.png'" alt="Add {vb:raw post.username} on Google+" /></a>
</vb:if>

	<vb:if condition="$social['bebo']">
<a target ="blank" href="http://www.bebo.com/{vb:raw social.bebo}"><img src="images/postbit_social/bebo.png" onmouseover="this.src='images/postbit_social/bebo_a.png'" onmouseout="this.src='images/postbit_social/bebo.png'" alt="Add {vb:raw post.username} on Bebo" /></a>
	</vb:if>
    
    <vb:if condition="$social['myspace']">
<a target ="blank" href="http://www.myspace.com/{vb:raw social.myspace}"><img src="images/postbit_social/myspace.png" onmouseover="this.src='images/postbit_social/myspace_a.png'" onmouseout="this.src='images/postbit_social/myspace.png'" alt="Add {vb:raw post.username} on MySpace" /></a>
	</vb:if>
    <vb:if condition="$social['linkedin']">
<a target ="blank" href="http://www.linkedin.com/in/{vb:raw social.linkedin}"><img src="images/postbit_social/linkedin.png" onmouseover="this.src='images/postbit_social/linkedin_a.png'" onmouseout="this.src='images/postbit_social/linkedin.png'" alt="Add {vb:raw post.username} on Linkedin" /></a>
	</vb:if>
    
    <vb:if condition="$social['tumblr']">
<a target ="blank" href="http://{vb:raw social.tumblr}.tumblr.com"><img src="images/postbit_social/tumblr.png" onmouseover="this.src='images/postbit_social/tumblr_a.png'" onmouseout="this.src='images/postbit_social/tumblr.png'" alt="Follow {vb:raw post.username} on Tumblr" /></a>
	</vb:if>
    
     <vb:if condition="$social['flickr']">
<a target ="blank" href="http://www.flickr.com/{vb:raw social.flickr}"><img src="images/postbit_social/flickr.png" onmouseover="this.src='images/postbit_social/flickr_a.png'" onmouseout="this.src='images/postbit_social/flickr.png'" alt="Follow {vb:raw post.username} on Flickr" /></a>
	</vb:if>

     <vb:if condition="$social['youtube']">
<a target ="blank" href="http://www.youtube.com/user/{vb:raw social.youtube}"><img src="images/postbit_social/youtube.png" onmouseover="this.src='images/postbit_social/youtube_a.png'" onmouseout="this.src='images/postbit_social/youtube.png'" alt="Visit {vb:raw post.username}'s YouTube Channel" /></a>
	</vb:if>    
    
      <vb:if condition="$social['vimeo']">
<a target ="blank" href="http://www.vimeo.com/{vb:raw social.vimeo}"><img src="images/postbit_social/vimeo.png" onmouseover="this.src='images/postbit_social/vimeo_a.png'" onmouseout="this.src='images/postbit_social/vimeo.png'" alt="Visit {vb:raw post.username}'s Vimeo Channel" /></a>
	</vb:if>
      </div>
    </div> 		 
 </div>
</div>
<div class="underblock"></div>

And in postbit_social1, this:

  <vb:if condition="$social['twitter']">
<a target ="blank" href="http://www.twitter.com/{vb:raw social.twitter}"><img src="images/postbit_social/twitter.png" onmouseover="this.src='images/postbit_social/twitter_a.png'" onmouseout="this.src='images/postbit_social/twitter.png'" alt="Follow {vb:raw post.username} on Twitter" /></a>
	</vb:if>
    
	<vb:if condition="$social['facebook']">
<a target ="blank" href="http://www.facebook.com/{vb:raw social.facebook}"><img src="images/postbit_social/facebook.png" onmouseover="this.src='images/postbit_social/facebook_a.png'" onmouseout="this.src='images/postbit_social/facebook.png'" alt="Add {vb:raw post.username} on Facebook" /></a>	
	</vb:if>
    
	<vb:if condition="$social['google']">
<a target ="blank" href="http://plus.google.com/{vb:raw social.google}"><img src="images/postbit_social/google.png" onmouseover="this.src='images/postbit_social/google_a.png'" onmouseout="this.src='images/postbit_social/google.png'" alt="Add {vb:raw post.username} on Google+" /></a>
</vb:if>

	<vb:if condition="$social['bebo']">
<a target ="blank" href="http://www.bebo.com/{vb:raw social.bebo}"><img src="images/postbit_social/bebo.png" onmouseover="this.src='images/postbit_social/bebo_a.png'" onmouseout="this.src='images/postbit_social/bebo.png'" alt="Add {vb:raw post.username} on Bebo" /></a>
	</vb:if>
    
    <vb:if condition="$social['myspace']">
<a target ="blank" href="http://www.myspace.com/{vb:raw social.myspace}"><img src="images/postbit_social/myspace.png" onmouseover="this.src='images/postbit_social/myspace_a.png'" onmouseout="this.src='images/postbit_social/myspace.png'" alt="Add {vb:raw post.username} on MySpace" /></a>
	</vb:if>
    <vb:if condition="$social['linkedin']">
<a target ="blank" href="http://www.linkedin.com/in/{vb:raw social.linkedin}"><img src="images/postbit_social/linkedin.png" onmouseover="this.src='images/postbit_social/linkedin_a.png'" onmouseout="this.src='images/postbit_social/linkedin.png'" alt="Add {vb:raw post.username} on Linkedin" /></a>
	</vb:if>
    
    <vb:if condition="$social['tumblr']">
<a target ="blank" href="http://{vb:raw social.tumblr}.tumblr.com"><img src="images/postbit_social/tumblr.png" onmouseover="this.src='images/postbit_social/tumblr_a.png'" onmouseout="this.src='images/postbit_social/tumblr.png'" alt="Follow {vb:raw post.username} on Tumblr" /></a>
	</vb:if>
    
     <vb:if condition="$social['flickr']">
<a target ="blank" href="http://www.flickr.com/{vb:raw social.flickr}"><img src="images/postbit_social/flickr.png" onmouseover="this.src='images/postbit_social/flickr_a.png'" onmouseout="this.src='images/postbit_social/flickr.png'" alt="Follow {vb:raw post.username} on Flickr" /></a>
	</vb:if>

     <vb:if condition="$social['youtube']">
<a target ="blank" href="http://www.youtube.com/user/{vb:raw social.youtube}"><img src="images/postbit_social/youtube.png" onmouseover="this.src='images/postbit_social/youtube_a.png'" onmouseout="this.src='images/postbit_social/youtube.png'" alt="Visit {vb:raw post.username}'s YouTube Channel" /></a>
	</vb:if>    
    
      <vb:if condition="$social['vimeo']">
<a target ="blank" href="http://www.vimeo.com/{vb:raw social.vimeo}"><img src="images/postbit_social/vimeo.png" onmouseover="this.src='images/postbit_social/vimeo_a.png'" onmouseout="this.src='images/postbit_social/vimeo.png'" alt="Visit {vb:raw post.username}'s Vimeo Channel" /></a>
	</vb:if>

I then edited the User Profile fields to read
Enter your Twitter username (excluding the @).
Enter your Facebook username.

etc ...