One thing that really bugs former Outlook express users when they switch to outlook is the lack of inline display of images in the preview pane.
There is not a setting you can enable to display images inline – Outlook does not support it. You can use VBA to create a picture viewer so it's easier. See View Attached Images in the Message, not as Attachments for the VBA code you'll need or an add-in, if you aren't comfortable playing with VBA.
Published July 25, 2005. Last updated on September 17, 2011.