The skill trees in Rift can be confusing. At first it'll seem like character class choices are limited, but once you get in the game, you have several different skill trees to choose from depending on which class you picked. Like all the archery stuff is under the Rogue class, and all the druid skill trees are under the Cleric class. There are three skill trees you can put points into. Your main tree and two secondary ones. But before you commit points to any of them you should look them over carefully. The way to change skill trees is to click on the icon that's in the middle of one of the trees and a list of other skill trees available to you should pop up. Buuut here's a website that should be really helpful.
Clicky