WordPress.org

Advanced Usage

The plugin also supports parameters:

1. $num_items: how many photos you want to display.
2. $imagesize: small, medium, large or fullsize.
3. $id_name: specify a user id ( ie:sksmatt ).

EXAMPLE

<?php get_scrnshotsRSS( 10, "small", "sksmatt" ); ?> 

This would show the 10 most recent screnshots from sksmatt user in small size.