si mira el html es este
Código HTML:
<script type="text/javascript">
<!--
var ipb_lang_js_blanks = "{ipb.lang['js_blanks']}";
var ipb_lang_js_no_check = "{ipb.lang['js_no_check']}";
var subsdesc_0 = "{ipb.lang['subsm_no_desc']}";
var subdesc = new Array(); <!--{SUBS.JSCRIPT}-->
var register_method = "{ipb.vars['converge_login_method']}";
-->
</script>
<script type="text/javascript" src="jscripts/ipb_register.js"></script>
<form action="{ipb.vars['board_url']}/index.{ipb.vars['php_ext']}" method="post" name="REG"
onsubmit="return validate_reg_form(event)">
<input type="hidden" name="act" value="Reg" />
<input type="hidden" name="termsread" value="1" />
<input type="hidden" name="agree_to_terms" value="1" />
<input type="hidden" name="CODE" value="02" />
<input type="hidden" name="coppa_user" value="{$data['coppa_user']}" />
<div class="borderwrap">
<div class="maintitle"><{CAT_IMG}> {ipb.lang['registration_form']}</div>
<div class="formsubtitle"><center>RELLENA EL FORMULARIO CON TUS DATOS PARA CREARTE
LA CUENTA</center></div>
<div class="tablepad">
<table class='ipbtable' cellspacing="0">
<tr>
<td width="50%">
<if="ipb.vars['converge_login_method'] == 'username'">
<div class='tooltip-error clearfix box-shadow-soft' id='box-name' ><div id='msg-name'>{$errors['username']}</div></div>
<table class='ipbtable' cellspacing="0">
<td><font face="Verdana" color="black" size=2><b>Usuario</b></font></td>
<tr>
<td>
<input type="text" size="50" maxlength="64" value="{ipb.input['UserName']}" id='reg-name' name="UserName" class="ui-corner-all form-input-text box-shadow-soft" />
<img id='img-name' src="{ipb.vars['img_url']}/spacer.gif" alt="" width='12' height='12' />
</td>
</tr>
</table>
</if>
<if="ipb.vars['auth_allow_dnames'] == 1 OR ipb.vars['converge_login_method'] == 'email'">
<div class='tooltip-error clearfix box-shadow-soft' id='box-dname' ><div id='msg-dname'>{$errors['dname']}</div></div>
<table class='ipbtable' cellspacing="0">
<tr>
<td><font face="Verdana" color="black" size=2><i>Nombre Público </i></font><span>(<a href="#" style="cursor: help; color: #555;" title="{ipb.lang['dname_text']}">?</a>)</span></td>
</tr>
<tr>
<td>
<input type="text" size="50" maxlength="64" value="{ipb.input['members_display_name']}" id='reg-members-display-name' name="members_display_name" class="ui-corner-all form-input-text box-shadow-soft" />
</td>
</tr>
</table>
</if>
<br />
<div class='tooltip-error clearfix box-shadow-soft' id='box-password' ><div id='msg-password'>{$errors['password']}</div></div>
<table class='ipbtable' cellspacing="0">
<tr>
<td width="1%"
nowrap="nowrap"><font face="Verdana" color="black" size=2><i>Contraseña</i></font></td></tr>
<tr>
<td><input type="password"
size="30" maxlength="32" value="{ipb.input['PassWord']}" class="ui-corner-all
form-input-text box-shadow-soft" id='reg-password' name="PassWord" />
<img id='img-password'
src="{ipb.vars['img_url']}/spacer.gif" alt="" width='12' height='12' />
</td></tr>
</table>
<table class='ipbtable' cellspacing="0">
<tr>
<td width="100%"><font face="Verdana" color="black" size=2><i>Repetir Contraseña</i></font></td></tr>
<tr>
<td><input type="password"
size="30" maxlength="32" value="{ipb.input['PassWord_Check']}" class="ui-corner-all
form-input-text box-shadow-soft" id='reg-password-check' name="PassWord_Check" /></td></tr>
</table>
<br />
<div class='tooltip-error clearfix box-shadow-soft' id='box-emailaddress' ><div id='msg-emailaddress'>{$errors['email']}</div></div>
<table class='ipbtable' cellspacing="0">
<tr>
<td width="1%"
nowrap="nowrap"><font face="Verdana" color="black" size=2><i>Email</i></font></td></tr>
<tr>
<td><input type="text"
size="30" maxlength="150" value="{ipb.input['EmailAddress']}" class="ui-corner-all
form-input-text box-shadow-soft" id='reg-emailaddress' name="EmailAddress" /><td width='12'>
<img id='img-emailaddress'
src="{ipb.vars['img_url']}/spacer.gif" alt="" width='12' height='12' />
</td></td></tr>
</table>
<table class='ipbtable' cellspacing="0">
<tr>
<td
width="100%"><font face="Verdana" color="black" size=2><i>Repetir Email</i></font></td></tr>
<tr>
<td><input type="text"
size="30" maxlength="150" value="{ipb.input['EmailAddress_two']}" class="ui-corner-all
form-input-text box-shadow-soft" id='reg-emailaddress-two' name="EmailAddress_two" /></td></tr>
</table>
<!--{REQUIRED.FIELDS}-->
<!--{SUBS.MANAGER}-->
<!--IBF.MODULES.EXTRA-->
</td>
<td width="80%" valign="top">
<b><center><img
src="http://www.argewarez.com/foro/prueba.png"></center></b>
</td>
</tr>
<tr>
<tr>
<td><!--{REG.ANTISPAM}--></td>
<td valign="middle" align="center">
<div class="desc">{ipb.lang['submit_text']}</div>
<input type="submit" class="large button magenta" value="Registrarme" />
</div>
</td>
</tr>
</table>
</div>
</div>
</form>
<script type="text/javascript">
//<![CDATA[
reg_error_no_name = "{ipb.lang['reg_error_no_name']}";
reg_error_no_pass = "{ipb.lang['reg_error_no_pass']}";
reg_error_pass_nm = "{ipb.lang['reg_error_pass_nm']}";
reg_error_chars = "{ipb.lang['reg_error_chars']}";
reg_error_taken = "{ipb.lang['reg_error_taken']}";
reg_error_username_taken = "{ipb.lang['reg_error_username_taken']}";
reg_error_username_none = "{ipb.lang['reg_error_username_none']}";
reg_error_email_missing = "{ipb.lang['reg_error_email_missing']}";
reg_error_email_nm = "{ipb.lang['reg_error_email_nm']}";
reg_error_email_taken = "{ipb.lang['reg_error_email_taken']}";
reg_error_email_ban = "{ipb.lang['reg_error_email_ban']}";
var got_dname = 0;
<if="ipb.vars['auth_allow_dnames'] == 1 OR ipb.vars['converge_login_method'] == 'email'">
got_dname = 1;
</if>
init_reg_form(got_dname, register_method);
//]]>
</script> y usa un archivo .js que aca te lo dejo
www.argewarez.com/foro/demo/ipb_register.js
saludos