Were my folders/mailboxes from the original WebMail transferred to the new WebMail?
Yes. Your mailboxes, along with the folders you had already created, should have been fully migrated to WebMail2. Please note that the Attachment folder was not migrated, but remains in your PASS. To retrieve your attachments from the original WebMail, use any one of the file transfer methods listed at http://helpdesk.psu.edu/ftppass.html. Once you access your PASS space, navigate to the attach folder, which should contain all of your attachments from the original WebMail.