je l'ai fait avec PSOloadv.2.0 et sa fonctionne pas non plus:

il y avait un message sur des nouvelle version de PSO USA et JAP voici le texteanglais)

These are the newest Japanese PSO versions currently released and
have not yet been released in the U.S. or Europe. Sega\Nintendo has
updated their network code so that it can only connect to WAN IP's,
rather than LAN IP's as well. That means that in order to use them
with PSOload V2.0, you must either use an Action Replay code to
patch the code in PSO which checks the server IP, or you must
use a router to connect to the PC's WAN IP instead of LAN IP.
To accomplish the second option, you must set up your own DNS server
to point to the WAN IP of your PC rather than the official
Sega server IP or your PC's LAN IP. Instructions for setting up
a DNS server are in the old readme file which is attached to the end
of this one. If using a cross-over cable rather than a router, it
should be possible to change your PC's LAN IP so that it looks
like a WAN IP and tricks PSO into connecting to it anyway. In any
case, using these two new versions for code uploading may possibly
be a bit tedious to set up, but should work just as well as all of
the other versions when configured properly.