I recently installed Lubuntu on my old Dell Optiplex GX270. It originally had windows XP. I had some problems with the drivers in Windows as well. After installing Lubuntu I cannot connect to the internet or see any nearby networks. I can't use apt-get or wget because of this, however I can use a different computer and move any necessary files. Can someone please give detailed, step-by-step instructions for how I could go about installing any necessary drivers and what else I should do to connect to the internet.
PS. I'll be happy to give any other details if they are necessary.