Device Security Disabled but still no full access

[Guest xelar]

This is driving me nuts! I've disabled the security settings (application unlock) of my C500 via an official Security Level Setting application received from Orange (after several over the air attempts). Still, I'm unable to access all files via my registry editor (PHM).

All I'd like to do is change the long date settings in HKLM/nls/overrides so the day appears in my home screen, which currently is not possible since I don't have access to those keys/values.

What can I do? Any ideas anyone?