NetGear (IM-WG511T) Wireless Adapter "turn bt wifi" Questions

bt voyager wireless card i no longer have HELP ME BEFORE MY HEAD EXPLODES PLEASE! does your laptop have a switch on the side or Fn key (blue icons on the F keys) to turn on/off the wifi. Sometimes Fn

...bt voyager router which is owned by her parents, i don't know a lot about computers but my gf needs my laptop to be able to connect to her router and im scared of messing up her parents settings. is ...