I have finally had time to settle down and setup the OU Engineering Toolbar so it auto-updates. In effect everything you would need to know about fixing the versioning is in this article from Mozilla's Development Center.
The way that you setup automatic updating is by hosting an update.rdf file in a directory the format of which can be found in this web-page. It also requires you to use secure http (https). If you are working with this just check with your systems administrator to see if hosted files use this automatically.
I was expecting this process to take a lot longer time-wise to work it out but it only took about two days to get everything sorted. Now I am going to go down to the Russ College of Engineering and see about getting the toolbar hosted in the computer labs there!