The installer wants to put the .exe in the C:\Program Files(x86) folder. On Win7 the system doesnt allow that unless you run as admin. The common way is to right click on the install file name and select 'Run as'
It places the user files in the folder pointed to by $PROFILE which windows sets to the users path. So if you are running in the admin account you wind up with the files under in C:\Users\admin\Wizards|Mill.
I suspect when you make your own user folder windows doesnt fix the $PROFILE envvar.
Right now I dont know how to get around this, other than to put your user folder where microsoft wants it, or to manually move the folders after the install to your user folder.
I will continue to work on this.