I shouldn't have deleted the resource my bad. I'd un-delete it if I could.
I think it doesn't work for them because I pointed them to a twitter login that may not be the one I'm using. There were four different twitter authentication addons posted on here. The first one sucked. The second worked for awhile. Then a guy in the thread uploaded his own version which worked fine and then another guy uploaded a different version in resources.
I didn't write down what the template modifications were... do you have them saved so I can remove them?
Remove this from sidebar_visitor_panel:
<center><xen:if is="{$xenOptions.facebookAppId}">
<xen:require css="facebook.css" />
<li><a href="{xen:link register/facebook, '', 'reg=1'}" class="fbLogin" tabindex="110"><span>{xen:phrase login_with_facebook}</span></a></li>
</xen:if></center>
<xen:if is="{$xenOptions.c2Twitter_consumerKey}">
<div class="cta_twButton">
<a href="{xen:link register/twitter, '', 'reg=1'}" class="twLogin"><img src="http://a0.twimg.com/images/dev/buttons/sign-in-with-twitter-d.png" alt="Sign up with Twitter" /></a>
</div>
</xen:if>/* Add Twitter login button to visitor panel */
.cta_twButton {
margin: 10px 30px;
text-align: center;
}