The disk permissions can't be repaired with Disk Utility on the partitions without OS X. The normal way to change it in the "show info" window isn't possible, I tried to delete the names, add names, restore changes, everything is furthermore in gray. HELP

Help! ¡Socorro! Hjälp! Hjelp! 😟 Anyone! I'm out on deep water now. I have a PPC PB with several partitions on the internal drive. One with OS 9.2, one with OS X.4, one with OS X.5 and three others for personal documents. Since I as administrator didn't have access to desktop folder, I changed the permissions in the "Show Info" window, something you never should do in OS X.5! 😝 The problem is that there is no changing back in the same way! most of the options are gray and the few options left are without actual change no matter how many times I 'change' it in the scroll bar. I tried to delete some user names but nothing happens, I tried to add some others but also without any change. I tried to change the privileges that are all set to "Personalized" to something else but it's not possible to change that either. 😢 Disk Utility is repairing the start unit right now, it had 2 days and 18 hours left yesterday and now it says remaining time is 3 days and 1 hour. That's a problem that I just have to deal with but how can I fix the non OS partitions? Log in as "root" might be one option. I did that to fix something several years ago in OS X.2 and after that I had a lot of problems with the OS. Is there any command in "Terminal" that could fix this? Please help! 😮