I read this on finks home page:
2003-02-07: DO NOT INSTALL VIREX 7.2
The Virex 7.2 package, currently being distributed free to all .Mac members, has a serious conflict with Fink. Fink users should not install Virex 7.2 under any circumstances. Installing it after Fink is installed will damage your Fink installation; installing it prior to Fink will make it impossible to install Fink without damaging Virex.
This bug has been reported to Virex's manufacturer. We will keep the Fink community informed about the situation as it develops.