Scheduled tasks on Mac OS9

I need to copy a folder from a windows 2000 pc to a MAC OS 9/Appleshare IP 6.2 on a daily basis. I have a tape backup on the MAC and want to make sure any changes on the PC get copied to the MAC for the backup. I would prefer a solution that would only copy the changed files and add new files/folders (it is about 2.5 GB), but could delete the files on the MAC each day and copy the entire folder if necessary.
Something similar to doing a batch file with scheduled tasks in the windows world is what I am looking for, or cron in the linux world.
Thanks.