The plugin works fine in max 8. I have created several animated and non
animated models with this plugin.

Make sure you have uv mapping applied to the model and do not use a compound
multi-texture or anything like that. Just use a plain bmp texture in the
diffuse slot of the material. You can change the texture in MED later.

Check "hi precision" and enter the start and end frames (keyframes) in the
dialog. Click "export frame range".

Some Tips:
Before you export, save your file, then collapse the stack. Switch to some
other tab than the "modify" tab on the command panel, the export operation can
sometimes mess it up if it is open while exporting. If it crashes, restart max
and try again, however once you get the hang of the plug in, crashes are rare.

Good Luck!