Problems with my WLAN

Hello, Please help me i am about to throw this laptop through a closed window!!!!

I bought a 2nd hand Toshiba L10 laptop for xmas but the WLAN does not work not even the light will come on.
I have now tried what i believe is everything but i know there will be somthing i have missed, I have reformatted the laptop, tried pressing the wireless button located on the front of the comp but it does not work, ive tried pressing Fn + F8 but this does not work, ive gone into several settings with no avail, ive even searched for a wireless link but it tells me that i have to switch the wireless on first which i cant do.
I am at the end of my tether now and need some help i think if anyone has any ideas please please please could you help.
Thanx a million in advance
Clare

PS i have taken the cover off the bottom of the laptop and it appears that there is no wireless lan card but ive no idea if there is one that is already built in how can i check this (i have looked through all the manuals)