check this for midi file editing http://soundcompany.net/sd1/mastering_studio/
for midi connection you need this drivers from ketron http://www.ketron.it/software/KetronXPC.zip
Ketronxpc is a software driver that allows you to transfer MIDI data to/from the serial port of the Personal Computer without using the MIDI interface..
but this drivers for windows 95 and 98..if you need drivers for Xp, you can use Yamaha CBX driver..regards