I'm using Windows 98 2e, OE 6. Click File, Import, messages, browse, find the identity folder and click next, get message "The specified message store could not be opened. It may be in use by Outlook Express" = can't import itself into the same identity. Tried to create a new identity and it will import to there, but only the folders that OE can "see", and not my folder Sent Items 2006. Also tried renaming the folders but OE isn't fooled by that.
Sent Items 2006 has the data (27MB), can open it in Word (reads gobbledegook), but just can't open it in OE.