Hello mateamargo!
You know, everything is possible. I only told that my gpad works, and there is a very good chance, that the other Logitech gpads will work too, but you can never know. Since there are tons of gpads out there, it is possible that some of them will not work perfectly. There are some ways to find out which gamepad works or no.
1. If you don't want to buy a new gamepad, than maybe you should check out the QJoyPad project (homepage
here). Maybe that will help you. Try this before you buy anything.
2. If you really have to buy a new gpad, check out the LQ-HCL (LinuxQuestions.org Hardware Compatibility List) for a "proven to work" gamepad (check
here). If you don't want to browse the HCL by manufacturers, than try to use the "search" button (the menu appears), and there type "gamepad" into the "search HCL" section. Some reviews will be found there too.
3. If you or your friend has a laptop, go to the shop with it, ask the shop assisstant if you could try some gpads on the laptop before purchase. Don't forget to take a live distro if no linux on laptop.
Finaly, you must know that a gamepad (or any other hardware) maybe will perfectly work on one distro, and on an other not so perfectly. This hardware usability thing slightly differs from distro to distro, but the average shows, that if something works here, it will work there too (maybe some "hacking" is needed, for example QJoyPad installation

).