toshiba wifi problem?

i have a Toshiba laptop that i was fixing, i need to just take out the hardware a put it in the same model a Toshiba 6100 as was the one before but now the wireless is not working i checked the bios i add the driver i made sure the hardware was not physical damaged and i tried another shell from the same model line and it still wont pick up but it worked before not it wont even work in the original shell any tips thanks


laptop Toshiba satellite pro 6100
80gb hdd
CDRW/DVD
p4
windows xp(updated)
Updated bios

 

Is there an on/off switch?

 

tried the on/off switch and still nothing

 

there was one for the modem but i put the driver on a updated it and still nothing, and the wireless is not showing up in the device manger at all

 

not another wireless card just another laptop that did not have any parts in it so the hdd,memory,wireless card,went from one to the other I'm looking to get another card now and see if that works but want to know why this one stopped picking up