TRiP98 is available in the versions
bio accounts the necessary shell variables,
(i.e. $TRIP98 pointing to the installation directory) are set at login.
As of Feb-2009 one can toggle between versions with shell commands, e.g.:
. trip98env -new ..... . trip98env -classicselects the
new version first, then reverts to the classic one.
In either case simply run
TRiP98as usual.