Migrating a Asset field in a CCK Content type

Im working on migrating content from our old db into Drupal. I was able to import content from the old db and create nodes using the script below. The CCK Content Type contains an asset field for images which i was also able to import. But the problem is that when im on the edit page of that node the asset module doesnt pre populate the asset image fields. In addition im able to view the values of those fields when im vieweing using "Dev Load".

Is there a way that I can have asset module display the images on nodes that have been generated automatically by a script ??

Thanks

require_once './includes/bootstrap.inc'; 
drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);

        global $user;
		$result =   db_query(db_rewrite_sql("select * from dbname.dbtable"));
		while($results = db_fetch_object($result))
		{
		
			$node = new StdClass();
			$node->type = 'cck_content_type';  
			$node->uid = $user->uid;
			$node->status = 1;  
			$node->promote = 0;  
			$node->sticky = 0;  
			$node->title = $results->TITLE;
			$node->body = $results->TEXT;
			$node->field_story_id[0]['value'] = $results->STORYID; 
			$node->field_datel[0]['value'] = $results->SUBMITDATE;
			$node->field_datel[0]['value'] .= 'T00:00:00';
			$node->field_breakpoint[0]['value'] = $results->breakpoint; 	

			$images =  db_query("select imagename from dbname.pictures where STORYID = $results->STORYID");
			$imageCount = db_num_rows($images);

			$i=0;
			while($image = db_fetch_object($images))
			{
				$assetId = db_next_id('{asset}_aid');
				$imagename = $image->imagename. '-460.jpg';
				
				$node->field_story_images[$i]['options'] = $imagename;
				$node->field_story_images[$i]['caption'] = $imagename;
				$asset_type = 'local';
				$asset_dirname = 'images';
				$asset_extension = 'jpg';
				$asset_uid = 1;			
	
				db_query("insert into {asset} (aid, type, dirname, extension, filename, uid, status) values (%d, '%s', '%s', '%s', '%s', %d, %d)", $assetId, $asset_type, $asset_dirname, $asset_extension, $imagename, 1, 1);
				$i++;
			}
	
			node_save($node);
			$nid = $node->nid;
		}