I totally agree with what Beeblebrox said plus-
Wish I had bought something else -as a small start up business I purchased macposx because it was the least expensive. Big mistake. This software is the least intuitive piece of software I have ever had the misfortune to try and figure out.
While it does work and do pretty much everything you would need pos software to do, getting it configured is a nightmare. Customizing the reports to show the info that you need is an exercise in utter frustration. And while tech support is available-the guy is just outright rude, talks down to you in a manner and tone of "how dare you not understand and be able to use my software".
Buy a different package -buy once cry once, buy this P.O.S. and prepare to spend hours getting it configured.