if you're on linux put them in your
user_name/.blender/scripts directory.
if you're in windows it's something similar, but the location of the blender scripts changes with each version of windows (i think they do this to make life miserable).
a quick look here:
http://en.wikibooks.org/wiki/Blender_3D:...rt_scripts
says:
Windows XP: C:\Program Files\Blender Foundation\Blender\.blender\scripts
Windows XP (alt): C:\Documents and Settings\USERNAME\Application Data\Blender Foundation\Blender\.blender\scripts
Windows Vista: C:\Users\USERNAME\AppData\Roaming\Blender Foundation\Blender\.blender\scripts
If you're on Mac OS...wow, they have to have another bulleted list just for macos...uhh, maybe someone else can help.
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then launch blender
file menu -> export -> .joe to export your mesh to a .joe file. i tried doing this on something really simple first (sphere i think), to go all the way through the art pipeline once before i really tried to work on stuff.