Whoppix 3.0 dont recognize my ethernet card !!!

Whoppix is an old, outdated distro, it changed names to WHAX then merged with Auditor and became BackTrack. Download and try this security-focused livecd instead.
Homepage of BackTrack.

What tools do you need that exist only in Whoppix? It seems highly suspect that something is on Whoppix that doesn't have at least a functional equivalent on another security-based LiveCD, either better tools have replaced whatever it is you are using or the tools changed names.

It seems like (and is likely what is happening, due to the age of any Whoppix release you can get ahold of since it's been discontinued) the hardware is not supported by the older kernel or any of the add-on kernel modules that may ship on the disc.

Unfortunately I believe your only real recourse is to try to find a distro that has the tool(s) that you need and can support your card from a LiveCD or to break off a part of your hard disk for a dual-boot system and install one of any number of distros and get the card working (will work out-of-the-box on many newer distros) and then installing whatever security tools you need.