Most sequencer programs have a 'save as' feature...that will let you save in the SMF format (Midi0). The Casio software will also convert (it is free).
There are a couple of other forum options:
http://www.originalz.com/casio/casio_bbs/ and the Casio mirror of it's old site:
http://www.casio.ie/music/forum/ Casio's main forum is still off (as far as I know)