ok i need some help, i installed ubuntu as my only OS and now my wireless card doesnt work

i have tried re-installing the drivers like it said but it said that the .EXE file wasnt supported i have tried using NDISWRAPPER and that didnt have any luck, so im just wonderin if anyone has any idea on how to sort this.
oh and if this belongs in the linux/unix section my apoligies it semmed like it would belong here.