Step by step run of the Exchange Calendar Update Configuration Tool (MSExTMZCFG.EXE)

If this has been covered in other areas I apologize - I have tried searching!  In any case, we are running Exchange 2000 and we are going to be testing this tool in a lab this afternoon on a few mailboxes.  My question is this - it appears that if we run the tool either via Outlook or the "server" tool, we will most likely run into resource conflicts (ex. Conference rooms) because of double booking issues.  I assume the server tool does nothing different to address this?  I did read a post somewhere that mentions running the tool first against all resources and then running it against users?  Is this the recommended approach and if so is it just a matter of modifying the text file to just include those resources and then later on run the tool again and exclude the resources?