While I know this isn't your fault, Bob, I have to say that downgrading, and applying a workaround (since I am on ML), in order to get access to a very basic and often requested piece of information is stupid on a collosal level. I know Apple has a corproate attitude of "you get what we give you, because we are Apple, and too bad", and solely because they are Apple can they get away with it, and people forgive them. I'm guilty of that forgiveness too. But that isn't going to last forever if they constantly stab their customers in the back.
However, first, thank you very much for the instructions. I ended up calling Apple before you responded and they informed me that what I was trying to do couldn't be done with an Airport Express anyway, so the MAC address was moot.
I had been led to believe that the AE could function as a wireless bridge, which it can, BUT only if your router is Airport as well. Since I have a Linksys N750, the AE cannot be used to create a bridge on my network. Again, a "Why the h*** not, Apple?!?!?" kind of question. So it's getting dropped back off at the Apple store, and Linksys is getting my business instead. It's a shame.
