CHMOD 4755 doesn't work

[Robert DeMarco]

 I seem to be having a problem with
file protectiom, I am running a bbs-
like program on my system and I want
, for the duration of my program, for
the user to have the same accsess 
privlages to my files, because I need
to accsess a secret file in the bourne
shell login. (But it is read by me only
thats why I have to change the uid to
me).

 CAn any one help???

     thanx
       [> Rd

ps) Is there a goto like statement in
bourne shell?