Set the remote type to "MCE Remote" in the imon software, then add a Microsoft Media Center Edition Harmony profile.
With this it's working quite good.
I'm getting it to work this way too but what do i map to get the EPG guide to show. Its THE most important button for me.
well, use IRSS, with this I have Mapped TV Guide window to a MCE Button and that to Guide Button of harmony
elswhise maybe you can map Guide with Shortcuter to a Key!?