Have you tried Youtube? Some great videos for all kinds of wamwater flies. Besides Warren's link (great site) try
http://www.invictaflies.us/Patterns.htm
http://www.warmfly.com/smf/index.php?board=14.0

Heck, I just did a quick Google search and found a bunch of sites I didn't know were out there. Poke around; that's half the fun.

Regards,
Scott