Using Hotmail ([email protected]) mail with Vista

I don't quite understand what the bug-a-boo is with Hotmail and Vista. Like, aren't they both Microsoft, and why did MS launch a OS platform that doesn't support their own mail program????? Duh... Anyway... here is the problem. I downloaded Windows Live Mail, thinking I could utilize my Hotmail account with Vista, but still not working. EXAMPLE: I am on Craigslist... I want to repond to an ad by clicking on the link that shoudl bring me to my mail program.... I got the message that it didn't support my "msn.com" address, so I changed to Yahoo... it will bring up Yahoo mail program, but I want to use my main mail program, msn.com (Hotmail).... how can I utilize accessing the mail links in craigslist ad, for example and have it go to my Hotmail program?
THANKS!
Windows XP was just great! What is Vista all about, anyway?

You can use Hotmail with Windows Live Mail...I'm using it at the moment. however my address is "@hotmail.com" and not "msn.com". Howver looking around on the web I found this..

Your mail is here, come and get it!

I have not had time to look at it all, but could be a starting point for your problem.