Enabled permissions for "Everyone" but denied "change permissions"

[ed]

Hello,
I just got Vista, I was changing permissions for network access. When I
added "everyone" I accidently unchecked the change permissions box. Now no
matter what I do I cannot change the permissions back to what they were. I
am totally locked out. I even tried to log into administrator and it still
didn't work.

Please help!!

Thanks,
Ed