Yes Microsoft do provide support for Hotmail (you can even call them!)
But I
would strongly advise against not using HTTPS. Without the encryption used in the HTTPS
protocol (128 bit ssl if I am not mistaken), you are more than likely sending your
username and password plain text over the internet which is not good at all.
Any
website that uses logins should be using encryption and by using HTTPS you are basically
guaranteeing that.
The login system for the

website and
the associated user areas (but not the forum posts/threads) use HTTPS.