I purchased Office 2007 Ultimate (including Groove 2007, InfoPath 2007 and I think One Note 2007). Groove I never figured-out and I really don't know what it is. I have some forms I built on InfoPath and I have a lot of "stuff" in OneNote.

I purchased this suite at DiscountMountain software and I think they are trustworthy and have good prices. The software has worked essentially as I planned.

I now want to upgrade to Office 2010. The best price is for Office 2010 Professional Academic which does not have every 2007 Office Ultimate app. The sales rep said that when you install Office 2010, you first have to remove Office 2007 via the control panel Add/Remove Programs.

First of all: Is that true? I have never heard of having to remove a version of Office to upgrade to a newer version.
Second of all, can I just remove the apps that Office 2010 Professional Academic will replace and can I leave InfoPath 2007 alone?

THanks in advance