OK, thats straightforward...

Assuming 4 axis x/y/z/a
BOB->ServoDrive/pin (for step/direction)
2 -----> x/33
COM-> x/32, x/34
3 -----> x/35
4 -----> y/33
COM-> y/32. y/34
5 -----> y/35
6 -----> z/33
COM-> z/32, z/34
7 -----> z/35
8 -----> a/33
COM-> a/33, a/34
9 -----> a/35

Set the COM jumper X7 near pins 2/3 to +5v and apply +5v to the board from a wall-wart, USB cable or tapping off a disc power cable inside PC.