Have you installed the drivers?
Did the machine come with a hardlock (USB software protection device)?
What operating system are you using?
What control software does it use? (MoshiDraw/NewlyDraw/LaserCUT/Other)
Sorry for the short questions but best to get some of the minor potential issues out the way first before worrying about expensive bits
ps: Your URL / Link doesn't work so I haven't been able to look at what type of machine it is.