I just finished upgrading our server to ColdFusion 6.1 (aka redsky). I had some issues during the update process and realized it was because I always ran the ColdFusion services under their own account that has somewhat restricted access (by default they run under the system account). If you are upgrading a windows server make sure you change the account to your administrator/system account before the update and switch it back afterwards.
Well the server is happy now