Hi Ron,
By searching around other forums I believe that I have resolved the "MaxBackServiceInt.exe" issue. There must be a bug in the program as you have to set up a backup date/time whether you want it to do that or not. Open the Maxtor OneTouch Manager; Select Backup; Select Edit My Backup Settings; Select a day and time (or more than one); Select Finish; Either Turn Automatic Backup On or Off. "MaxBackServiceInt.exe" will no longer continuously run, and will alow the drive to power down. If you uncheck all days and have Automatic Backup On or Off, it will run continuously and the drive will be spinning all the time.
However, the above has not resolve the Backup Status Issue (i.e. the two error messages - one from Windows the other from OneTouch), which I think must be due to having more than one user on the computer - both my users are "Adminstrators" under XP SP2.
As far as contacting a Maxtor-Seagate Tech., if you go to Contact Support you can do a Live Chat during the working week. My experience was not very positive when I asked the question about why the drive wouldn't run down so that I could safely remove it - the response was basically that there is nothing wrong with our software you must have another program accessing the drive, which of course I did not - it was "MaxBackServiceInt.exe" all the time.
Good luck.