Outlook 2007 Dual boot

I recently set up a dual boot between WnXp Home and Vista Ultimate. I have installed Outlook 2007 on both partitions and would like to share my pst, calander, notes, etc between both partitions. I have found several web sites that hint that sharing these components is possable but no one says how to accomplish this. One site recommended that you use a, "Open other User" option but I don't see it in Outlook 2007. Can anyone give me help on this?

Thanks in advance

You could just store the PST files on one partition and then set Outlook up on both partitions to point to those PSTs. In Tools -> Options -> Mail setup click on the option Data Files and then change the folders in the list to the ones you want to use. I have got Vista Home Premium and XP MCE and I have accomplished this in the same way so that I have a uniform PST whichever partition I boot into.