Hi,
the docs (Cisco Desktop Administrator User Guide CAD 6.6 for Cisco Unified Contact Center Express Release 7.0, Cisco Unified Communications Manager Edition September 2009) say:
Restoring the Default Password
The Reset Administrator Password option can be used In the event you forget a password you set up. This option resets the password back to its default value (blank) without requiring that you know the previous password.
This menu option is available only in CAD Configuration Setup located on the Unified CCX server.
To restore the default password:
1.On the Unified CCX server, navigate to the C:\Program Files\Cisco\Desktop\bin folder.
2.Double-click postinstall.exe to launch CAD Configuration Setup.
3.Choose File > Reset Administrator Password. The utility runs and resets the password to blank.
I never tried it myself, but it sounds reasonable.
G.