Interesting problem, one which occurs every time they come up with a new system!! The software manufacturers must rub their hands together thinking of all the new versions that are required to be compatible.
Make sure you have the latest Vista compatibility patch
Then try launching money in enhanced administrator mode
(right-click on the shortcut and choose "run as administrator")
Be careful with the link for Money 2007, it is the US version and not compatible with UK banking, there are a few reports/blogs out complaining about the lack of upgrade since version 2005 - nothing is forthcoming from Redmond, as usual