The plugin is an importer for the 3D character model files, which are not technically sprites because they are not prerendered.
The latest version of the plugin is v0.3.1, which is attached to
this post. It is still in development, so this version will not be the last. Instructions for use can be found in the comments at the top of the file.
You will need the model files and textures as well, which I can't really help with. You can find a few scattered in the thread I linked to above, if you are willing to click through the whole thing. I have at least attached Serge's so you can get a feel for how the plugin works and what it does.
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