She has her own account SFC in LiveMail on the Desktop.  Now she has a new laptop, which came with Oultook, and she has a new account EB, and that works fine.  I now use the desktop; she doesn't.  

But I still get her emails on the SFC account.  So I then forward them to her at EB - but the "Forward" does NOT include the sender's email address !  She then "Replies" - to me !  So I then have to "Forward" her reply to the sendee - using her SFC account - to which the sendee will reply - to the Desktop again !

What I need to do is

1.

to transfer her SFC details to the laptop, so that the SFC mails go straight to her.  Yes, I have "exported" the account details from LiveMail as an .iaf file.  Now what ?  HOW do I get Outlook to accept it for import ?

AND... I need

2.

to transfer her EB account details to the Desktop, so that I can send on her e-mails using her EB account, i.e. send only, with any replies then going direct to her.

So - how do I export the account details from Outlook and import them to LiveMail ?

Once I have those EB details on the Desktop,

3.

how do I configure the DeskTop only to "send" from both her SFC and EB accounts ?

Please use simple words that even I can understand  ;-)