The only other program for OS 8.6 I found was "MacSatellite" with horrible reviews. Most consisted of a recomendation for Limewire or (segway...)..."Drumbeat" which is only available for a 15 day trial and then it's 34.95. Seems to be in it's programming state. Still lots of kinks to work out.
I had an OS 8.6 and finally gave up to get a new eMac. Sure, the design isn't my favorite, but I got a deal for it ($699?). OS X isn't something to lok past. Of course, I'm not sure how much you're willing to spend.
Hope to hear from you soon.