As already reported - I had no problems getting it to work. I'm using a custom kernel on Gentoo. It is slower than on windows, and the colors are messed up, but it's VERY usable!
One trick to getting it to work was that I had to install the system pack first and then it asked for a reboot. After simulating the windows reboot, it wouldn't run again until I deleted the folowing line from ~/.cxoffice/dotwine/system.reg:
"RunMoneySetup"="M:\\setup.exe /postreboot /pkg:mnypack"
I then was able to continue the installation.