talktalk email online and in windows live mail

Hi,

I have a talktalk email a/c and usually read my mails in windows live mail.

Last week there were some issues with talktalk. I was not receiving any mails in windows live mail and they advised I access my mails online,via their site - which I did.

When I logged into my a/c on their site today is was completely empty. However, all mails my mails appeared in my windows live mail.

Is there a reason why my mails would go from one to the other or I wouldn't be able to access them both ways? I had a look in settings but cannot see anything.

Thanks