I have outlook 2007 running on vista perfectly. Have you set up you account and added your pop and smtp servers?, once you have completed this your mail will appear into your box.
Good Luck
Hi!
My query was specifically with Comodo Anti-Spam and Outlook 2007/Vista. As it happens (long story short), I've had to go back to XP following a compatability problem with something I need at work so I now don't have the problem.