Hi czhu,
I know this is an old post but did you ever fix this problem? i have the same issue with a unix system.
We fixed this eventually in our AIX environment. After all the recommended configuration tasks were done with no joy (ACCESS DENIED at logon to the Aphelion Web Tools page). It turned out to be that the following was required.
Find the file aphelionMenu in the cgi folder and run the following commands
chown root aphelionMenu (this sets the ownership to the master admin id - in this case root)
chmod 4551 aphelionMenu (this applies the setuid action to the file)
Note that the group should not matter.
You can validate that via ls -l in cgi folder and should look like this (note the 's')
-r-sr-x--x 1 root 1281 298560 Jun 23 2011 aphelionMenu