Try it without installing FTM and just go for SF 2.04 (or is it 2.03 - whatever the SF launcher suggest you update to) - then get the patch from here http://didays.derkb.de/downloads/DiesIrae/Dies_irae_Gotterdammerung_v1.03_beta.rar
As DD states in the OP - the FTM is still a beta
Ok, thanks. Do you know when it will be possible to play it with FTM?