Scheduled Tasks Passwords

I have set tasks to run using Scheduled Tasks within Window XP and set the password of the task to that of the user account that I want to run the task.

The problem I have encountered is that I have a policy set so that after 90 days, my users must change their password. When my users change their password, the passwords to run the scheduled tasks do not change as well. Because the scheduled tasks passwords don’t change, the tasks no longer run.

Is there a way to synchronize the login password so that when it changes every 90 days, the scheduled tasks passwords will change as well?