Animal companions and mounts gained through a class feature level up with the character they're companions to. "Bought" animals are just regular animals, and use the bestiary stats forever. (also I have no idea why they give tiny animals weapon finesse, since they use their dex to attack<em>anyway</em>. You'd think a hawk would get Skill Focus: Perception or something. I guess they had a template and nobody cared enough to change it for every single damn animal?)<br/><br/>Mythweavers (http://www.myth-weavers.com/) is a character sheet site. Fore example, my version of an archery fighter (http://www.myth-weavers.com/sheet.html#id=1026670) for National Acrobat's Greyhawk game. You have to register, but it's completely free, so no worries about that stuff.