I upgraded to Lion some time ago, and had previously kept all my internet programs in a dedicated folder while I ran Snow Leopard. When I installed Lion, it installed an updated version of Mail in the applications folder, though when I ran it it did not find my mailboxes. I ran it again several days ago, and it showed all my mailboxes without problem, so I then deleted the older version of mail that I used in Snow Leopard. Problem is, when I open Mail now, none of my older messages are there. I have Time Machine running on a 1TB external disk, but cannot find where the mailboxes are hidden. Can anyone help me to recover my old messages and settings?