Problems with flickr class and WP2.0

Hi there,

I have now fully installed WP2.0 but my flickr class in my side bar – see class here: http://pastebin.com/522813 – see to clash with something in WP2.0 – my site: http://www.elycity.info – as my author list does not work and I get this error:

SELECT ID, user_nicename from wp_users ORDER BY display_name

Warning: Invalid argument supplied for foreach() in /home/public_html/news/wp-includes/template-functions-author.php on line 182

Any possible ideas what is doing this and any way to fix?

Thanks