MDI Instal

[adbears]

I am trying to open .mdi files received by email. I am using office 2002 and
have installed the MDI in tools from the control panel as requested.
However, when I try to open from Outlook express it says no file association.
The MDI software opens from the tools menu. I tried saving the file as
..tiff but still no joy. Is there something else I need to do? (Simple terms
please - not too techo.)

thanks,
Adbears