[Boofo]

Try this:

In the postbit and/or postbit_legacy template, find:

<if condition="$post['replylink']">
<a href="$post[replylink]"><img src="$stylevar[imgdir_button]/reply_small.gif" alt="$vbphrase[reply_with_quote]" border="0" /></a>
</if>

Replace it with:

<if condition="$post['replylink']">
<if condition="THIS_SCRIPT == 'private'">
<a href="$post[replylink]&stripquote=1"><img src="$stylevar[imgdir_button]/reply_small.gif" alt="$vbphrase[reply_with_quote]" border="0" /></a>
<else />
<a href="$post[replylink]"><img src="$stylevar[imgdir_button]/reply_small.gif" alt="$vbphrase[reply_with_quote]" border="0" /></a>
</if></if>