Series1 transparent mode and digimesh

I'm working with a fellow that ended up with two series1 XBees but one has the standard series 1 setup while the other has what I believe to be a digimesh setup.

One radio
(VR) Firmware version: 10EF
(HV) Hardware version: 1748

The other
(VR) Firmware version: 8073
(HV) Hardware version: 174A

Can these two talk using simple transparent mode? If so, are there any extra settings I need to set? for regular 10EF firmware I'm using

ATCE0,ID7734,AP0,SM0,SP12C,ST7530,CN

thanks for any help!