I saw some pics in the gallery and it looks like Rikard joined after the release of ISOT for the tour. It looks like his moustache joined Evergrey for the recording of Recreation Day, though.
I believe Sven recorded on ISOT, but then left the group. There was a rather goulish character named Chris who toured with EG on that tour. When Chris left the band, in stepped cute lil Rikard.