I have an article for you to read that will fix your printing issues with the 1536.
Dell Studio? 1536 Is Unable to Print Documents
As for the printers, if they're Dell inkjet printers, if you tell us the model numbers, then we can help you install them.
Have a Dell Studio Laptop 1536 with Vista, got over 15 hrs into it trying to install 4 different printers, 2 different brands, several different cables. After buying the software repair aggrement, 5 hrs later after they tried the same things I have been trying, they wanted to restore the laptop to the origianal Factor Setting. Been there, done that, still didnt work, dont want to do it again and reinstall EVERYTHING AGAIN. Where do I go, who do I have to call from here to get my money back from that software repair, get a printer installed, or laptop replaced?