I've never had problems with Open Office within Linux but maybe that's different to OO within Windows.
I have a very strong nag of a memory coming at me that Office '97 wouldn't install in XP let alone Vista but this cannot be so, can it? I definitely seem to recall it though. I think Office '97 only worked up to ME & 2000.
Are Corel still going then?
Poor old Corel, they always made superb software and always seemed to lose out to Microsoft, Adobe and the like.
Dirty tricks dept? Or just plain market forces?