What i am doing wrong with mach3?? trying to config machine.

[i2i]

hi

if thats so, would i need some sort of special drivers for it?? also whats a level shifter?? and how would i install it??

As Jazz has said we need more info and better photos to see what's there.
The level shifter allows the 5v logic level from the parallel port to activate the 12v logic in the drives.
If the machine has worked before then this is all there and just needs to be checked.