RESET THE ROUTER Do you believe thats all it was.   I just reset the router with all the same information I had previously and boom the laptop saw it and connected. No special drivers or settings or HP files.  Just the updated current driver for the device and a reset to the router. Unbelievable
Rescued an Inspiron 1300 with Windows XP. Everything is back up and running perfectly with all security updates and patches.  Basically brand new, reformatted harddrive with ALL software re-installed including OS. But now the WLAN mini-card (DW1370) won't connect to my wireless network.  It sees both my network as well as all the other networks in the area, however, when I try to connect nothing happens.  My network has both a MAC and PC laptop wirelessly connected so not sure why this laptop won't connect. I am running the most up to date driver: 
WLAN 1370 Sees Network but won't connect