You could edit the footer template and add your text inside a vb:if tag, like:
Code:
<vb:if condition="THIS_SCRIPT == 'index'">
This text only on forum home page
</vb:if>
Thanks for your help kh99. For the "THIS_SCRIPT" part, do I write that exactly as it is, or do I need to replace the "THIS_SCRIPT" with something specific to my site?