Get in contact with Soulyss if you can. He's been teaching me a great deal about 38 tactics, although I am by no means proficient yet.
For reading materials, check this link:
http://www.simhq.com/_air/air_024a.htmlIt has some really good information on BnZ tactics, although it might be a bit hard to visualize some of the maneuvers.
I'm finding the best place to practice (if you don't mind getting shot down a lot) is the Dueling Arena. It's easier to find furballs to zoom in on, and the atmosphere is (usually) more relaxed. Expect to die often though.
A couple of tips
1) make sure you can use your views properly. This is critical in all kinds of flying, but it's a lot easier to lose sight of your target during vertical maneuvers.
2) Practice your gunnery. You'll be making a lot of quick passes and getting both trailing (shots at the target from behind) and deflection (shots at an angle) and you need to develop good aim and reflexes. Deflection shots are particularly difficult, but there's nothing sweeter than watching an enemy plane cut across your nose in mint condition one second and come out the other end in pieces the next.