Cross cultural stupidity

Stupidity begins with me. I brought a copier/printer/scanner from home. GREAT IDEA! I even brought an adaptor for European plugs! VERY SMART!! But what did I forget?! 1) the cd for installing printer software on my computer; 2) the manual!!!! 3) extra cartridges. How dumb can you get, right? It took two weeks to download the software from HP on line and get it installed, thanks to Aaron (our genius of a son-in-law who came and did it for me). Now I need cartridges. In fact, when I brought it, it was low on ink. STUPID, STUPID, STUPID. So I walked around the corner from our apartment to a computer store and bought two cartridges, one color and the other black and white. The box stated that they fit HP 1510, which is my machine. Not having the manual, it took me a while, but I figured out how to load the cartridges. AND THEY DIDN'T WORK!!! What is wrong with me? What is wrong with the machine? What is wrong with the cartridges?!!! Lance tried, and it didn't work for him either. So back to the computer store I went on Saturday, but it was closed. So back today and I brought the copy machine. The clerk could not get it to work either, so he called HP and they said that even though the box said it would work for our machine, this cartridge only works in Europe!!! AND he wouldn't take the cartridge back so I had to pay almost a hundred dollars for cartridges I can't use!!! I was NOT HAPPY!!!