PP keyboard not working at all

[jojuma]

Today my PP keyboard arrived, but doesn't work.
Since it's charging my PP, i suppose, the connection of the pins is fine.

Now I read in the instructions post, I need the KB151 driver. But before I reinstall the whole system, this results in the following questions:
1. How can I check, if this driver is present?
2. If it isn't, can I install it or do I have to reinstall the whole OS?
3. If I do have to reinstall the whole OS, how do I know if the kernel does include this driver (I read, that in stable, the driver is not present)?

Thanks for helping me