bvh animations and getting "mirror" to work correctly (SL question)

does anybody know how to setup Blender to be able to Mirror a pose left>right??

what i want to do is setup the left side of a pose and have the right side move to match

think of the vitruvian man in t-pose and then in the X pose

the other hook is that im working with http://dl.dropbox.com/u/5398233/badwolflabs/SL_Avatar_Tpose.bvh

which causes some “issues”

if you reply with “works for me!” please list your EXACT blender version with any plugins you have installed

question for the mods who could i ask to make a SecondLife bvh editor plugin??