[EvilLS1]

No hack needed.. Just edit the registration templates.

Find this:

<tr>
	<td bgcolor="{secondaltcolor}"><normalfont><b>Allow Bulletin Board Administrators and Moderators To Send You Email Notices?</b></normalfont></td>
	<td bgcolor="{secondaltcolor}"><normalfont>
		<input type="radio" name="allowmail" value="yes" checked> yes
		<input type="radio" name="allowmail" value="no"> no
	</normalfont></td>
</tr>
<tr>
	<td bgcolor="{firstaltcolor}"><normalfont><b>Invisible Mode?</b></normalfont><br>
	<smallfont>Selecting yes allows you to surf the forums without appearing in the 'Logged In Users' list.</smallfont></td>
	<td bgcolor="{firstaltcolor}"><normalfont>
		<input type="radio" name="invisible" value="yes"> yes
		<input type="radio" name="invisible" value="no" checked> no
	</normalfont></td>
</tr>

Replace it with this:

<input type="hidden" name="allowmail" value="yes">
<input type="hidden" name="invisible" value="no">