Hallo,
das der Code so geht war ich mir sicher, viel kann man da ja nicht falsch machen :)
Hier das was davor kommt:
<table border="0" cellspacing="1" cellpadding="1" width="99%">
<tr>
<th bgcolor="" class="head" colspan="2">xxx</td>
</tr>
<tr><form method="get" action="xxx.php">
<td align="center" bgcolor="#CCCCFF" class="header" colspan="2">
<input type="hidden" name="xxx" value="xxx">
<table border="0" cellspacing="1" cellpadding="1" width="50%"> <tr>
<td align="left" bgcolor="#CCCCFF" class="header" colspan="2">
<font size=2>
abc:
</td>
<td align="left" bgcolor="#CCCCFF" class="header" colspan="2">
<input type="text" name="xxx" value="xxx" size="35"><br>
</td>
<td align="left" bgcolor="#CCCCFF" class="header" colspan="2"><nobr>   
a <input type="radio" name="xxx" value="1">
b <input type="radio" name="xxx" value="0" checked></nobr><br>
</td></tr>