I have also succeeded loading the samples into the Krome, but I can't get it to work in other programs than F001 which I find kind of weird. Also, the samples do not stick to the keys I assigned them to, but thats ok, I can live with that (they insist on distributing themselves chromatically on the keyboard although I try and tell them otherwise).
This is a great tool, and I am so glad I finally got it to work.
To other Mac users: I use Parallels Desktop with the option "IE11 in Windows 8.1" installed, for some reason you don't need to purchase a license in order to install it. Remember to install the .net framework prior to installing Kromatic. You will be prompted to do so upon installing, and thus provided with the correct download URL.