HP Deskjet 3420 driver issue in windows 2003 x64...

Question

I have a HP Deskjet 3420 Printer. It works fine in my old windows XP system. Now i am using Windows 2003 Server Enterprise Edtion R2 x64 edition. The problem is i can't install printer driver. In windows 2003 32 bit edition it works perfectly using 2000/XP Driver from HP. But i can't find any driver for Windows 2003 x64 edition. And i also like to mention it works fine in Vista x64 and Server 2008 Datacenter Edition x64 editon using inbuilt HP 3500 series printer driver. I also tried with Wndows XP x64 driver from HP download site.But the installer saying that it is for Windows XP x64 editon and Windows 2003 X64 edition not supported. Please resolve the problem as early as possible.