Just wanted to stop by, in case anyone else ever finds this post because of the same problem.
Broadcom released a driver for the adapter for Windows XP (Broadcom 43142 Wireless LAN Driver for Windows XP, Ver.6.30.59.81) -- that one worked successfully!
Broadcom released a driver for the adapter for Windows XP (Broadcom 43142 Wireless LAN Driver for Windows XP, Ver.6.30.59.81) -- that one worked successfully!