Assuming gamecopyworld links work (no guarantees!): here. You want the "Phantasy Star Universe v1.0 SP [ENGLISH] No-DVD/Fixed EXE", you need to either put the .exe in it in place of your PsuOffline.exe or run it with -off (e.g psu_no_gg.exe -off).
the file that downloads from the gamecopy world link you give there gives a _SUIlluminus.exe file, which i assume is for illuminus and not original psu