Portuga,
Just to make sure, you did
everything I said? You haven't answered some of the questions I've asked, so I can't be sure you've followed all directions.

Any
light blue text indicates a link to another webpage. please follow those links by clicking on them and following their directions
From what I can tell, your computer only supports xp and windows 2000
drivers. If you install the
driver from
this website (HP), then you might try putting the driver into
compatibility mode (Follow the tutorial, but put it into compatibility for XP).
On the HP website, try auto-detecting to see if HP can find a driver for you. If not, download the xp x64 drivers and put them into compatibility mode via the link I've provided you