Well,

the instructions are basically what I've posted before:

you'll have to download the pats files, save it anywhere you want, open the .cfg file and point the "dir" directive to the point you've saved it.

to use it with wildmidi:

wildmidi -c /path/to/cfgFile.cfg <midi>

to make it definitive (for playin' in media player, for example)
cd /etc/wildmidi/
mv wildmidi.cfg wildmidi.cfg.bkp
cp /path/to/cfgFile.cfg wildmidi.cfg

restart device.

As long as I remember, that's it.
If you have any problems, please let me know.

(note: it works with any pats pack, for exemplo: eawpats, goemon...)