Here is how to set up your e-mail address, how to change how often OLE sends and receives messages and how to enable the viewing of pictures in Outlook Express 5.0 and 6.0:
You are not doing anything wrong.
There is a default setting in the security options in OLE that you have to change.
Above I have posted solution for this problem. The name of the page is:
How to Enable Viewing of Pictures and Attachments in OLE.