Here is an answer to my question for those of you who might still be searching:
On the TotalProtection "Navigation", select "General Settings and Alerts" (under "Settings" in Left Column)
Once there, go to "Access Protection" at the bottom. CLEAR the "Use Access Protection"
I presume this will allow mbk5enus.exe to delete the old process. I am certain that this now allowed
me to delete the registry keys and directory related to the BackUpAndRestore from ISS 2007.
mbk5enus.exe installed and works just fine
(Check the check box for "Use Access Protection" when you are done, before you leave "Total Protection 2010")