balbung deberia quedar de esta forma... si no tienes tus variables globales activadas.
Código HTML:
<tr>
<td align="left"><b><?php echo (Categoria) ?></b></td>
<td>
<select name="topicId">
<option value=""><?php echo (Categoria)?></option>
<?php
$services= db_query('SELECT topic_id,topic FROM '.TOPIC_TABLE.' WHERE isactive=1 ORDER BY topic_id');
while (list($topicId,$topic) = db_fetch_row($services)){
$selected = ($info['topicId']==$_POST['topicId'])?'selected':''; ?>
<option value="<?php echo $info['topicId']?>"<?php echo $selected?>><?php echo $topic?></option>
<?php
}?>
<!-- <option value="0" ><?php echo (I_C_OPEN_GENERAL_INQUIRY) ?></option> -->
</select>
</td>
</tr>