SQL Report request. Users NOT using office 2010.

Hello. I have been asked to produce a report of people who are not using office 2010. I do currently have a report but it shows two entries, one for office 2003 and another for 2010. I would like to show only one result per user. The current report i have takes the information from add/remove programs, as there are multiple instances for office im not 100% sure if this is the best place to retrieve this data.

Any assistance welcomed, thanks.