I dont have my CD and need to install on my laptop

http://www.linksysbycisco.com/US/en/support/WPC54G/download
try this link

Use the below link

ftp://ftp.linksys.com/pub/network/wpc54gv2_driver_utility_v2.02.zip

save and unzip the file and then install the drivers.

Hook up your notebook to a wired network, go here and download it or get it onto a memory stick or a CD at a library or from a friend's PC.
http://www.linksysbycisco.com/US/en/support/WPC54G/download

Remove the card, run the file and when done, insert the card and you are back in business.
Remeber: the first rule of reinstalling a PC is this: Remember to back up (at least) the network drivers before you wipe the silly thing so that you are not dead in the water after installing the OS...