Ubuntu 10.04 64 bit cannot connect to internet (b43 related problem)

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http://askubuntu.com – I recently came upon a Dell 1545 Inspiron laptop and decided to put a fresh install of Ubuntu 10.04 LTS. At first I couldn't connect to the internet because I did not install the driver for my wireless card (broadcom 4312), but then I installed the first of the two drivers under the proprietary drivers list, it was the Broadcom b43 wireless driver. While that was active, I could detect wireless networks but could not connect to a network. I then tried to switch to the other set of drivers, the STA set. Now, I cannot even detect networks! Please help, and thank you for your time (HowTos)