importer: http://tremx.googlecode.com/files/zym_import_035.zip
(useful if you want too see animations and make a new skin)
exporter is dummy and canceled. sorry
please tell me what you dont like about http://forum.moddb.com/thread/13334/?page=1
(smd exporter for blender... so you can use smd2zym)
deprecated stuff below
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http://code.google.com/p/tremx/downloads/list