you don't need any kickstart disks, they were only meant for the amiga 1000 AFAIK. But maybe he meant you need something like a softkick or relokick style program which puts the 1.3 kickrom into memory so you can run kick 2 incompatible games. But SWOS should be able to run on amiga 600 without relokick. I think it sounds more like a floppy drive problem. Maybe you should buy a floppy cleaning kit, I saved a drive using one of those.