I have a v2000 also: V2312us AMD Turion64 with Broadcom Wireless.
You cannot turn on the wireless by the button until the ndiswrapper module is loaded.
then try using the button. It works fine with mine.
If your button is still not working, try loading windows first and turning on the wireless card then reboot to linux. Then when loading the ndiswrapper the card should be still on.