Got it!! here it is!
HTML Code:
<form action="tags.php" method="get">
<table class="tborder" cellpadding="6" cellspacing="1" border="0" width="100%" align="center" id="threadslist">
<tr>
<td class="tcat">Paginas que contengan...</td>
</tr>
<tr>
<td class="alt1" align="center"><div style="width: 480px" align="left">
<span id="tag_wrapper"><input type="text" id="tag_input" name="tag" size="35" style="width: 80%" class="bginput" /></span> <input type="submit" class="button" value="Buscar" />
</div></td>
</tr>
</table>
</form>
anyone in need jus grab it!