Tammy -
I was thinking more about this and wanted to let you know that you could do this via a new item that I have been working on, but you have to be using PHP to do the work that you want
It would not take that long to implement via PHP, look at this
thread
We currently have two process that work perfectly to update another object/custom object in salesforce when an event is changed.
In one of the process, it is on a custom object and when a custom field is changed from one status to another, it changes the owner on the account
I know that you could get this done and again, would not be hard
~Mike