If you export in FBX format from Blender you can import in MED
your character and animations.

I use Blender 2.49 , caus in Blender 2.5 a lot fo things are missing , some format export didn't work and i didn't find FBX
(i don't know for the last betas ??)

Just do It !!

http://independentcreator.over-blog.com/pages/3D_Models-7792999.html