Quoted from Installer Log:
"localhost OSInstaller[132] Not loading AirPort MenuExtra because this machine does not have wireless networking available."

Yet it's the same settings as when it did work.
thanks for all your help, I'll just look into buying a USB card.
Any suggestions for the card?
Btw I have a broadcom wifi card, yet I don't have full info on it because I'm accesing the Internet from my iPhone. Laptop model is HP tx2500z.

Thanks for everything.