Teachers accessing all students information

I would like to refer to issue in question #201137 "Allow teachers to view demographics of ALL students and contacts in school"

The given patch works well with schooltool 2.1 on edubuntu 12.04 LTS, but it does not fully work on schooltool 2.3 installed in edubuntu 12.10. It does give people list of names, but when we click on a name, it displays the log in page with the following message;

 "You are not allowed to access this page. You can click on the back button in your browser to go back, or ask a more privileged user to log in."

This function is quite useful for teachers and hope the patch could be updated.

Zainuddin.