Norton Utilities 14 - Missing Files

I have just loaded NIS 2012 but am having problems with Utilities 15. I am currently unable to uninstall Utilities 14  as unins000.msg is missing, and neither can I reinstall as \Data\map.dat  Data\values.dat and Data\keys.dat are also missing. This prevents me from loading Utilities 15 until 14 has been removed.

 

As it is similar to the previous problem I am hoping you can assist