So im gonna be changing my transmission fluid tonight using this DIY:
http://www.scionlife.com/forums/viewtopic.php?t=120673&start=0&postdays=0&postorder=asc&highlight=

Im goin after work to AutoZone to go pick up a funnel and drip pan, but before i go i need to know the bolt sizes of the fill plug, drain plug, and what ever bolts i need to remove to complete this...

Thanks :P

drain plug should be a 14mm

noooo not for tranny fluid. Its 14mm for your oil but for tranny fluid its gonna be 24mm. and make sure you open the fill plug just a tad before the drain plug. This is so you make sure you can fill it back up. And make sure not to remove the fill plug all the way when you drain it cause it will pour out really fast and make a mess. I use redline mt-90 in mine.