<xf:extension name="signature">
									<xf:macro template="message_macros" name="signature" arg-user="{$post.User}" />
								</xf:extension>

<xf:extension name="signature">
									<xf:if is="$post.isFirstPost()">
										<xf:macro template="message_macros" name="signature" arg-user="{$post.User}" />
									</xf:if>
								</xf:extension>