I have had Photoshop CS3 Extended for a while now, and still having trouble learning the advanced stuff.

Does anyone knows of a really good tutorial?

Check pixel2life or just Google. You can also try design forums.

I have a few tutorials that I made when I was pretty much a beginner.

www.blink-designs.net/tutorials/

By the way, I'm not advertising. If you look at the main page if it does show for you it would be an installation page for a blog system which I don't think is advertising much

If you don't find what your looking for try these sites.

www.pixel2life.com
www.good-tutorials.com
www.planetrenders.net

Good luck

Thank you.