Hi,
All tower modules are compatible. Otherwise the tower system wouldn't be modular.
In this case, the MCU module and peripheral module can communicate via SPI (and most probably UART). The micro which drives the display on TWR-LCD modules has SPI routed to primary elevator and it mathces with the SPI of the MCU module.
But the touch screen interface seems not to be directly connected to MCUs ATD pins via elevator connection. You should somehow ensure the following pins are connested to MCU ATD channels:
AN4 // Touch X+
AN5 // Y-
AN6 // X-
AN7 // Y+
Of course, you can use any available ATD channels (ANx) on the MCU.
Regards,
iggi