Step 1: Join the board - you can't do anything without doing that first. Next, go to the School Rules and Regulations forum and read all of the topics there. These are the main rules of the board and all members are required to abide by them.
Step 2: Go to the Species forum. Choose which type of character you wish to create then go to the Character Roster forum and click on the topic for that species type's character sheet. Copy and Paste (CTRL-C, CTRL-V) the character sheet into a New Topic and fill in. Post it and wait until either Mystress or Terion has approved it.
Step 3: Post a New Topic in one of the forums or join in on an already started post. Remember the board rules and enjoy your roleplaying at Avendale