The board is placed directly on top of the 74ACT244 with the large TVS diode down. As I mentioned, I use a glue to keep it in place so I can wire it. That allows all the numbered connection points to line up with the appropriate pins on the driver chip, see pin layout below.
Notice how the labeled connections line up with the actual pin numbers on the 74ACT244 driver IC. I used fine #30 solid wire to connect the transient suppression board to the driver.