I am no tech expert however, I have stayed at a Holiday Inn Express a few times!
Less than a year ago, I made the switch from XP to Win7.
In doing my "homework", I was advised to not load any games into the Programs Files and Programs Files (X86). I was told that it was best to create a John Tiller Software folder and a HPS folder and load the games into those folders instead.
Are you unzipping to the correct folder?
Also are you using the correct download; JTS updates for JTS titles only and HPS updates for HPS titles only?