I've been using Fireworks since it first came out, and haven't looked for tutorials in a while, but there are a bunch listed in the Fireworks support section of Macromedia, and their technotes have been helpful. www.lynda.com has a tips section. Sometimes an old fashioned book is good.
I know how to use Fireworks fine, for just creating graphics. But I don't know how to use it for a complete page design, integrating it with Dreamweaver. I guess that's what I'm really trying to figure out.
I'm checkin' out Fireworks tutorials on Macromedia.