If that means a receiver with the Dell logo/faceplace design

It doesn't. Not exactly. When Dell stopped selling the Receivers, they gave/sold them back to Rio. Because we couldn't very well have them bringing up a splash screen with "Dell" written on it, they were reflashed to download a different set of firmware from the original. They couldn't just be reflashed to download the original Rio firmware, because the screen is upside down on the Dell receivers.

So, there are 3 flavours of firmware: Original Rio, Original Dell, Upside-down Rio (for the reflashed Dell Receivers).

The v1.03 server doesn't contain the 3rd firmware version, so you need v1.04 to use a reflashed Dell.