The problem with that is the way in which attributes are derived by cre and the fact that you seem to be using other attributes on the page as well.
So a simple fix would be - /includes/modules/product_info/product_attributes.php
Find this block:
Code:
foreach ($options_HTML as $op_data) {
?>
<tr>
<td class="main"><?php echo $op_data['label']; ?></td>
<td class="main"><?php echo $op_data['HTML']; ?></td>
</tr>
<?php
} //end of foreach
Replace with:
Code:
foreach ($options_HTML as $op_data) {
?>
<tr>
<td class="main" style="vertical-align:top;width:28%"><?php echo $op_data['label']; ?></td>
<td class="main" style="padding-top:12px"><?php echo $op_data['HTML']; ?></td>
</tr>
<?php
} //end of foreach
this will modify the radio list you show, but it'll change the text field attribute above it in ways you may not like.
So the width % is setting how wide the space you want the instruction to get, the padding-top is pushing the top radio choice down to line up with the instruction.
You could change those values to suit.
Anyway, give it a go.
Simon