I originally had a hotmail address which was being used to login to my account. And I had all of my work, uni and Gmail emails imported into this account.

I now use my Gmail address for signing up to everything and when I got a new Windows 8 laptop I used this Gmail address to sign up for a Microsoft account. Now, when I login to Outlook using the Gmail address it has none of my previous mail, nor does it receive any mail and I can't add the hotmail address as an alias, it won't let me.

In my original hotmail account I can't add the Gmail as an alias because  that email address is already taken (by me).

How do I merge the two, I basically just want to login to Outlook using my new Microsoft account, (under the Gmail address), and import all emails into this the usual way (and never have to login using my hotmail)