Firstly, Whoppix is older and has since merged with other projects into Backtrack
. Please use this as it is newer and has better hardware support.
Secondly, to help you out, we need a bit more information about your system, namely what kind of wireless card is in your system. Find out from your machine's vendor, Windows hardware Manager, or under a LiveCD, open a terminal and issue the command "lspci" (you might need to issue the command "sudo lspci")