I have had success running Money 2004 on Redhat Fedora with custom kernel 2.6.5.
Everything seems to work fine so far. I ahve imported statements, balanced accounts, gotten online updates, and run reports. Have not run a budget yet...
Some functions are slow to respond, but have not crashed yet. There are little bugs, like the dropdown list to select a category does not work correctly. If you select a category with a mouse, the current sleection in the dropdown list is 5 off from the one you selected. But have had no major problems so far.