QB 2007 Contractor (CAN) & Vista

I have a client who is running QB Contractor 2007 Canadian on a Vista Home machine.
I can't get the navigators to work. I keep getting messages saying
that Windows doesn't know what to open the file with. AND when I shut down I get an error message.
I have set up the program to run in XP Compatibility mode, the only user is the Administrator and it is installed in the Documents directory. Nothing is working and I've had the damned thing for a week and I am SOOO frustrated.
I'd install XP on his machine but he gave me two XP Home disks and no keycodes...
HELP!
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

BeanSmart.com is a site by and for consumers of financial services and advice. We are not affiliated with any of the banks, financial services or software manufacturers discussed here. All logos and trade names are the property of their respective owners.

Tax and financial advice you come across on this site is freely given by your peers and professionals on their own time and out of the kindness of their hearts. We can guarantee neither accuracy of such advice nor its applicability for your situation. Simply put, you are fully responsible for the results of using information from this site in real life situations.