OK, here is the official position.
webSuite 2006 (with its corresponding Service Pack 2) and webSuite 2007 have been tested and certified on Vista for both 32 and 64 bit PCs. Both have also been tested and certified on Vista 64 bit running on a 64 bit PC.
Older system types like Elite are not compatible.
Versions of Vista that have been tested include Business, Ultimate and Enterprise. Home Basic and Home Premium editions have not been reviewed or certified.
I hope this helps.
[This message has been edited by Matt Parsons (edited 01-15-2008).]
[This message has been edited by Matt Parsons (edited 01-17-2008).]