I skipped Vista altogether and now I want to finally move to Win 7. I see these retail box upgrade versions of Win 7 for sale and i'm wondering if i'll be eligible for that upgrade as an owner of XP Professional OEM license. I can't seem to find any info on that, MS site doesn't say which OS version is required for the upgrade. I'm hoping to get the Pro version with both 32 and 64 bit CDs but i don't know whether i can even upgrade from XP Pro and if i can can i do it with an OEM license. Any one know?