Reliability of the Vista Advisor

Comment:
Vraag over een NOG NIET aangekocht product (Vista).
Op uw technische ondersteuning pagina vind ik GEEN ENKELE mogelijkheid om
deze vraag te stellen.
I have asked the Help Desk Netherlands to give an answer to the following
question:
By using the Vista Advisor I receive the information that there are no
problesm using the printers:
- XEROX DOCUPRINT N2825 - this printer however is not shown on the "hardware
comptability list" available on the Microsoft site.
- DELL LASER PRINTER 5100cn : this printer is on the "hardware comptability
list" mentionned with the remark "unknown".
How can I be sure that both devices are working with all their options?

The Help desk could not answer and suggested that I should take contact with
the Vista community.

Thanks in advance for some information
Kind Regards
F De Ridder