I am having some trouble with Kimnai too. I bought Tiffany just to get the right hair for Kimnai but I cannot load Kimnai at all. All the files are in the right location but an empty screen shows up when I select Kimnai. Her picture shows up okay in the selection page, just not her avatar. If I click 'go', Tiffany shows up instead.
I've tried reinstalling twice and multiple restarts.