Well, MSN is dead now if I remember correctly. And there is a way to merge your MSN account into your already existing Skype account, you should have the option to do that somewhere on the Skype website.

It's actually on skype itself. When you sign in with a skype account it should ask if you want to merge it with a microsoft account, or vice versa, I can't remember exactly which way it is. I think before you even sign in it gives you the option to FIRST sign in with a microsoft account, then it asks if you want to merge with a skype account.

Ah, I see. I have my Skype set up so that it logs me in automatically so I don't see the log-in screen when I start up Skype. However, when I heard about MSN going 6 feet under I decided to look into this and I saw on the Skype website an option to merge the accounts if you already have a Skype, or to convert your MSN account into a Skype account if you didn't have one already, so it was a pretty easy change either way.

Hmm, yeah, I have it sign in for me automatically, but I think someone told me you could sign in from skype directly, so I think I purposely made it stop auto-sign in so I could investigate...or something...I dunno XD