I understand that 12 years have passed, but maybe you steel have the code of your custom identify tool and can share it?
I'm using VBA to create a custom identify tool that selects a point and populates the attributes in a custom form. I have accomplished this using the code from the thread listed below. I have several tables that relate to this point feature, as well as pictures, based on certain fields in the attribute table. I would like to add the related tables and also an image that is associated with that point.
http://forums.esri.com/thread.asp?c=93&f=993&t=142426