Not a TinyMCE expert here but hope this article can help:
http://www.tinymce.com/forum/viewtopic.php?id=14507
Found out where this goes to make it work! In the ASPRunnerProPlugins/Edit folder there is a file named EditTinyMCE.js
In this file in the init function is where you would add this information. Here is an example:
tinyMCE.init({
// General options
mode : "exact",
elements : this.valContId,
theme : "advanced",
plugins : "autolink,lists,pagebreak,style,layer,table,save,advhr,advimage,advlink,emotions,iespell,inlinepopups,insertdatetime,preview,media,searchreplace,print,contextmenu,paste,directionality,fullscreen,noneditable,visualchars,nonbreaking,xhtmlxtras,template,wordcount,advlist,visualblocks",
//Templates
template_templates : [
{
title : "Testig Templates",
src : "test_one.html",
description : "Testing templates for users."
}
],
I don't believe this version handles an external template list; however, I believe by downloading a more recent version of TinyMCE along with this plugin it's possible. It will require some detail work in renaming files.
I highly recommend this great plugin!