No quite so Clive, the BIOS settings for your Wireless Device is in the
BIOS Advance tab. The Default for the setting is Off. Change this to
Last State and then boot to your Vista and switch on the wireless Lan
if you have a switch (not all laptops have them)now when you reboot the
W/Lan is in its last state, On

Re the 8.4/8.10 bit. 8.4 may have a driver for you W/lan 8.10 may not.