Hey guys! I was also trying to get Fragile to work on a older G4 PPC with osx 10.5.8. I downloaded DOSBOX and I currently have it (unpacked folder) in Applications. The game folder "fragile" is in /Users/Atli/DOSGAMES/.
I tried the previously mentioned indications of mounting and I managed to mount the game. When I have to launch the game however, I just can't do it... I know I'm doing something wrong with the drives... it is confusing for me because I have never used a Mac before and now I have it as a temporary replacement (borrowed).
Another thing to note is that the only drive I see on this Mac is named "æ" (if this helps in any way).
erm... help?
