XP Cannot detect Intex RTL 8139D LAN card

This is a realtek based card so youe may want to try these drivers

Available Here

Make sure you get the ones for your operating system

extract them to a directory that you can remember and find easily.

eg. c:\mynic

Then select the card from your hardware list and tell it to update drivers. Dont let it wander the internet tell it directly where to find them.
It should then either do it for you with no fuss or offer you a choice of hardware and driver versions.
You would select the latest one and continue.

Hope this helps out