OS X (Apple)

Hi
I am new to forum and glad I found this place.
I have been searching for a way to add a secondary password to a preference pane such as date/time in Unix (Ox10.4.11) or to lock an application which I found a backdoor for access when password is not available. An app I use is a internet filter that allows a temporary password to be accessed for a particular calendar date. In lieu of the originator fixing the bug I found, I would rather just add a second password somehow over and above the administrator one it uses so as to prevent access being made by temporarily changing computer date and being abl to get into control panel of the app.
In unix is it possible to add another password say with a short terminal script that would then make it impossible to get into date and time panel w/o it?? I know this sounds funny but I'm also the administrator. It becomes really difficult if I either "lose" admin password to computer, or if I add another account and make it the administrator and don't have acceses. Unfortunately I have no one that can do administration for me and losing administration causes headaches and aggravating problems trying to do everyday maintenance. Thanks

Do you know how date and time panel are being launched?
If you do there is nothing stopping you to move or rename the executable and you writing a script to launch the application, not forgetting to include your passwd request...

Thanks for answering. The program I am using is k9 web protection which uses a temporary password retrieval system which is tied to the date but works for any year. ie: I know one useable with June 15th. OS X of course allows you to lock preference for date and time, but that would only work if I had an administrator which I don't. The best idea I could come up with since they have permanent table of 365 temporary passwords is to have a script that would ask for a second password over and above either the regular one you pick for the app. , or if I was so inclined to change date, gain access, and then reset. the current one set within the app. I am only familiar with the lines of instructions needed to flush cache in terminal, and what can be done in single user, say with something like applejack. Other than that I know little about what lines I need to write...besides I would need to somehow make it permanent, other than erasing with the OS10 install disc.
Thanks again.

Do you mind if I move this thread to what I believe a more suitable forum? (Mac OSX...)
Here it seems to not inspire much...

No go ahead. Thanks

What are we dealing with? OS version ? What kind of mac, a server? or a workstation?

When you say you have no administrator, who are you talking of? An account named so?

OS 10.4.11 G4 desktop w/sonnet 1.6ghz processor 2gb ram. I run it as
single user. if I try adding a fake admin account ( and not saving it's pwd) as I mentioned earlier ,then I cannot do maintenance. I also found that it causes kernel failures sometimes with Toast when I might be adding dvd movie onto my HD, watching existing, or burning a disc. somehow seems to happen regardless which accounts are setup initially.

Hopefully there is way to have system prompt for a second or even a third! password if trying to access date preference.