Hide me this security tab i shoudn't see...

As you may know, Two security tabs are hidden from the ESM...

How to enable the Security tab for the organization object in Exchange 2000 and in Exchange 2003

http://support.microsoft.com/default.aspx?scid=kb;EN-US;264733

in short:
HKEY_CURRENT_USER\Software\Microsoft\Exchange\EXAdmin
Value Name: ShowSecurityPage
Data Type: REG_DWORD
Radix: Binary
Value: 1

Restart the ESM