I don't know if anyone is still interested in this topic, but Rockwell has a very excellent document dealing with this subject. It can be found in their Knowledgebase: 19393 - PanelBuilder32: Gateway Passthrough Downloads are now enabled (https://rockwellautomation.custhelp.com/app/answers/detail/a_id/19393). At this time this tech note was last updated 7/16/2012, so apparently people are still interested in this. There is a Word doc attached to the article that has screen shots and excellent explanations of what you need and even WHY it doesn't work (when it doesn't work). Hey. I see I can attach files, so I will do so. Gateway_Download_Ethernet_to_DH+_for_ControlLogix_Rev2.doc