Unfortunately, to my knowledge there isn't an easy way to get to the parent feature. The "Version Changes" dialog is actually an ESRI one, so I may be wrong, but definitely check with them if you'd like to be sure.
The best way I could think of off the top of my head would be to use the foreign key for the Transformer feature that is on the transformer unit, then use the locator to find that feature. It definitely seems like it would be nice to be able to go to the parent feature immediately though.
Sorry I don't have a better answer!
Thanks Sam,I too believe that's the only way to go as of now.
Not sure if it's exactly what you're looking for, but SSP Innovations' "All Edits Report" does provide zoom to, pan to, highlight, etc from a textual and graphical list of all edits that occurred in a version (in addition to other functionality). You can go to our website products page for more info, or contact me directly.