Windows 7 Importing from Outlook.pst into LiveMail

[RedKite2011]

How do I import mails and contacts etc from Outlook.pst on old pc (W2000) into LiveMail on new pc (W7)? I've copied .pst onto new pc, opened LiveMail and selected Import messages, chosen Windows Mail as Outlook isn't listed, changed the path for location of .pst file and then I get a message about "no messages found in this folder" or "another application is running that has folder open" -...select another folder or close application..."

Thanks

More...