Ive heard that the yoda in jk3 is his rite size, but there are no models/skins of him on jk3 section of jk2/jk3files.com and i wondering if he is the same yoda skin from jk2files.com
I am not aware of a Yoda model which is the right size in either JKO or JKA, unless you are using a modified version (not of the model) of the game. So if you want to play as Yoda in mp, then it has to be a modded version of mp.
There was a mod for playing sp in JKA as Yoda, and the right size, but all the extra force power cheats that were built into the Yoda sp character mod caused crashes later in the game. It got so bad that I had to remove it and deinstall the game and do a clean reinstall.
I have not yet tried any of the mods that say you can more realistically scale models like yoda, jawas, desann, Jabba, gungans and so on. There is one that can be picked up at the jedimoves.com site, can't remember its name. You can also pick up a model of him here.
There is also a recent mod Forcemod III the return of the Sith avail on, among other places, here (http://www.pcgamemods.com/6404/)
It was a while in JKO before modders had the chance to work out how to scale models, the same has proved to be the case for JKA.
In single player you can just alter the .NPC file...
the yoda model by kinja for JO can be used in JA, and if you play on a JA+ server, and modelscaling is enabled he will be small. i have the skin myself, and i know for sure the official JA+ server lets him be small, and no there is not a reskin, you use the same skin.