<td><form action="<?php menu_page_url('edit') ?>" method="post">
<input type="hidden" id="<?php echo $issue->id?>" name="id" value="1">
<input type="submit" value="Edit">
</form>
</td>
Then, in the function where you add your admin pages:
add_submenu_page( null, 'edit', 'Edit', $capability, 'edit', 'create_edit');
Also add this function:
function create_edit(){
include 'edit.php';
}
It would probably be a good thing to have more unique names than these.