Latitude D820 XP DRIVERS

Dell website already provide you with the xp driver:

So you can download all the driver here:
http://support.dell.com/support/downloads/driverslist.aspx?c=us&cs=04&l=en&s=bsd&ServiceTag=&SystemID=LATITUDE%20D820&os=WW1&osl=en&catid=&impid=

Here i list the esential driver for dell latitude D280

Chipset
BIOS
Audio

For network and others you need to go to the official site because it contain a lot of driver range.
or you may download the driver pack from softpedia.

Download *(Quickset A44 windows 2k and XP)

Description about quicpack:

QuickSet provides the following features:

POWER: Power management schemes, Battery resource information and health, Warning messages unsupported power-adapter/dock/battery scenarios are detected.

DISPLAY: Display brightness, Desktop font & Internet Explorer Scaling, Display switching via Fn+F8 and presentation mode.

NETWORK/CONNECTIVITY: Radio/Wireless activity control using the wireless switch (OR) the Fn+F2 hotkey depending on your system, Location Profiler (Creation and switching of profiles comprising location dependent system settings; Managing multiple connections), Internal network card activity (depending on your system), Wi-Fi Catcher(TM) Network Locator Configuration

OTHER/SYSTEM SETTINGS: Volume status, Hotkey hibernate, MediaDirect (on certain systems)

XPS SYSTEMS only: LED color control and Touchpad LED control (depending on your system), Advanced power schemes