Some of the original members here are Naruto Jiyuu probably remember the old style of learning and using different techniques.. but that system has been almost completely revamped. Now, instead of learning random techniques, characters will now follow more unique paths using different technique charts, or trees.
In the technique chart and bloodline forum, you'll find several topics, each devoted to a certain type of jutsu. When creating a character, these charts are what will outline the type of fighting style your ninja will have. The ones you see are only a few options of course, there are almost limitless possibilities. If you want to create your own, there is an application in the next post. Bloodlines and technique charts are created in the same manor.
When you first begin choosing charts, you must take your rank into consideration. No matter which chart you choose, you will only start with the techniques that your character has enough chakra to learn. If your character is a Genin, (s)he will have all the techniques with "N/A" (not applicable) . If he or she will have all the techniques with a chakra of 10,000 or less. For ANBU and Hunter-Nin.. it's 15,000. And lastly for Jounin it is 25,000.
As you grow stronger and gain the chakra needed to learn more techniques on your chart, they will be automatically added into your character profile by the moderators. It's suggested however, that you make some kind of post showing your character learning, creating or practicing the move, so that it doesn't seem like she/he just magically learned it.
For characters in the genin and chuunin ranks, they can select one tree from the start as their main tree. ANBU and Hunter-nin can select a secondary tree. Genin can choose a secondary tree if they pass the chuunin exam. Chuunin can choose a secondary after passing the jounin exam, or joining ANBU.
Now, every character may learn all the jutsu on his main chart.. but when it comes to the secondary chart, they may only learn jutsu that cost under 15,000 chakra, regardless of rank or strength. Don't worry though.. there will be opportunities to learn jutsu outside of your chosen charts, by using scrolls, and through certain events.
In addition to main and secondary trees, every character will have their village academy chart, which can be found under what ever village you're in. All these techniques are availible to everyone in the village.
Oh, and on a last note.. if you pick a bloodline, it's gotta be your main chart.. and obviously you can't add a bloodline after you character has been made. If you wish to be a jinchuuriki.. you must create a special chart for your character, including any jutsu he will learn, and any transformations. It will be STRICTLY reviewed however, so make it good or it wont be accepted. If you do decide on a jinchuuriki chart, make sure to PM it to me, don't post it on the board.