Webdb on linux

I have oracle8i on linux configured with network support and i had installed webdb 2.0 now .
I have used Apache web server as gateway.

The question is M i required to configure seperate listener.ora, tnsnames.ora etc.. in
$ORACLE_HOME/webdb/network/admin as there are seperate binaries for the webdb software.
or oracle8i network configuration file should be edited and what to add more in that ??
–Deven