How to fix Broadcom Wireless on Mandriva 2008.0?

Hi, my question is sort of simple. I have a Dell Inspiron B130 which previously had a junk-filled HD with WinXP. I wiped my HD after being annoyed and bombarded with viruses and pop-ups, and put Mandriva 2008.0 on it. I got the wireless working for a few days but then it stopped working. I know it's not my access point since I am like 5 feet away from it. How can I reinstall or fix my wireless card driver? (Note: I have a Broadcom Corporation BCM4318 wireless 802.11g card). Any help would be appreciated.