Looking for a direct-replacement XP scheduler.

Direct-Replacement as in replaces the original scheduler, I don't need
to rewrite ANY of my existing scripts, nor third-parties interracting
with existing scheduler will break or needs any changes.

Need scheduler to ----

Offers to re-run missed tasks if for any reason skipped.
Option to "skip once."
Option to "save all settings" including security for recovery after
OS/Virus crash for example.
Options to use defaults. For example I need all my tasks to "wake up"
so I would like it to be set permanently by default.
Options to interract with other tasks, such as run task2 ONLY if task1
completed normally
Show schedule on a nice "calendar" format.

Seen one? Money no object.