Those are just annoying warnings - they don't prevent anything from working (or so I've read)...
you can hunt down each one like in this post
http://www.mysidiaadoptables.com/for...ead.php?t=4470 and fix them - or someone might be able to tell you how to turn off strict error reporting... there's also a post in this forum somewhere that tells how to get rid of the 'header already sent' warnings too