[EnIgMa1234]

If you want the checkbox to stay there but not be checkable you can just use

	<tr>
					<td>
						$vbphrase[administrators_may_send_email]
					</td>
				</tr>
				<tr>
					<td><label for="cb_adminemail"><input type="checkbox" name="options[adminemail]" value="1" id="cb_adminemail" $checkedoff[adminemail] CHECKED disabled onFocus="this.blur() />$vbphrase[receive_email_from_bulletin_board_staff]</label></td>
				</tr>

in place of the above REPLACE codebox.

Again this is untested. I also may be completely wrong about what your trying to do If thats the case then I apologise