:) Welcome welcome. We'll get you up to speed quickly. There's clearly a bunch you can read through at your own pace while we wrap up where the party is currently.
Character Creation stuff is in a thread
here. The only change for you on those posted rules is that we'll be starting you at level 3 so you are on par with the rest of the class.
Adding rolls to a post you do by clicking the "Advanced" button at the bottom and using the dice roller part that's on there. Left box is a description of your roll, the next box you put in what you want to roll. We can work on building you out while they wrap up. :)