Help! MacBook startup problems! Critical!!!

Hello all
(First of all sorry for my not perfect English, I hope you'll understand my problems anyway)
I made a great mistake by changing permissions for 'everyone' to 'no acces'. Now my computer wont start up. I have tried everything (resetting PRAM, starting with opt-down, starting from install-CD, trying to repair with DiskWarrior 4 [everything was fine] and other stuff I could find on different forums), repairing disk (I have no acces to repair disk permissions), trying to start in target-mode (would not work) and now I have this situation:
- when I start up with opt-down I get two options: EFI Boot or Install-CD. From that picture (doesn't matter which I choose) I can go to Disk Utility and choose Disk Control for Macintosh-HD (shows everything ok) and Repair Disk (also ok). I can not choose option for Archive and reinstall, this is inactive. The only possibility I can choose is Install MacOSX as a first time or Delete and install. No one of these options is interesting, because I didn't get backup of most of my files on MB (because extern HD wouldnt work with it for the long time, after one of the system updates).
- when I go to System profile I can see Root and Applications. In Root can I get acces to a map called something as Old/ recovered map with specific date (sorry, I am not sitting at home with my machine and I try also to translate to English) and in that map can I see all of my contents still exsisting One positive thing after all!
- What can I do to get acces to my profile? I have never tried to work with Terminal or other programming things...
Beside MacBook I have an old G4 with OSX 10.3 installed and approx. 2 GB space left. It is terribly slow! I have also LaCie FW with a lot of space, but it wouldnt work with MB before, so I am not very confident with it.
I know that is a terrible mass, but I really hope there is a kind soul to help me out of this situation, I am sure there is a way to do so.
Thanks in advance for any help!
Sincerely
Mignon

If your MacBook and your G4 both have working Firewire ports, you should be able to start up in Target Disk Mode http://support.apple.com/kb/HT1661 which would allow your faulty MacBook to mount as an external disk on your G4. You could then copy your significant files to the G4, after which you could erase and install a new system onto your MacBook and then copy your valuable files back to the MacBook. Just be sure you follow the instructions for Target Disk Mode exactly.
Bob N.

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Are you serious?!! Couldn't be anything else? I recall it did this one time a few years ago when I was running a 3rd party backup software. After I removed it, the problem went away.
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Mr Blumple wrote:
Thanks very much both of you!
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