Hi,
Yes, it's possible. To do so, try to follow these steps :
For "manage-entries.php" file, you can change these code in 409 :
<div style="float: left;padding-bottom: 5px;padding-left: 8px">
<img src="images/icons/arrow_turn_left.gif" align="absmiddle"/>
into
<div style="<?php if($form_id == 1) {echo "display:none;";} ?>float: left;padding-bottom: 5px;padding-left: 8px">
<img src="images/icons/arrow_turn_left.gif" align="absmiddle"/>
and for "view-entry.php", you can change these code :
<li><img src="images/icons/cross_22.gif" align="absmiddle"/>
<a onclick="return confirm('Are you sure you want to delete this entry?');"
href="view_entry.php?form_id=
<?php echo $form_id; ?>&id=
<?php echo $entry_id; ?>&delete=1"
class="big_dotted_link">Delete</a></li>
into
<?php if ($form_id != 1) { ?>
<li><img src="images/icons/cross_22.gif" align="absmiddle"/>
<a onclick="return confirm('Are you sure you want to delete this entry?');"
href="view_entry.php?form_id=
<?php echo $form_id; ?>&id=
<?php echo $entry_id; ?>&delete=1"
class="big_dotted_link">Delete</a></li>
<?php } ?>
That would remove delete link/button for form 1. Don't forget to change the id's with yours.