There is a lot to know actually!
The very first thing all new vaulters should learn is how to vault safely. First, let me ask, have you found a coach?
Because there is a lot to know, it's probably best you do most of your learning from him/her. This website can help you with specific problems or queries but I think you'd be hard pressed to get an answer to something like "can you teach me how to pole vault?". That's just too difficult to do over the internet. Also be careful if you're trying to research technique on google or youtube, there's a lot of garbage out there. What's good about an open forum like this one is that there is peer criticism, kind of like a journal. Ideas are put through fire to prove their worth. You can scour the forums and find lots of good stuff but they will most likely be a bit advanced for you.
Finding a good coach is probably the best thing you can do right now. Anybody who adheres to something called "The Petrov Model" will be your best shot.