Unfortunately I can't tell you where you will be seated, I never bought seated places - perhaps some one else can help you? I wouldn't be surprised if you don't have a numbered seat, it might be that you just have a ticket for a section and within this section you can choose - first come, first serve. But it doesn't matter anyway, as no more seated places are available, except VIP silver --> you will have a good view of the stage, don't know where they are exactly...
- Stehplatz (Wavebreaker) Kat 1 for 113 Euros --> that's FOS
- Kat 2 Stehplatz for 84.90 Euros --> that's normal standing tickets
- VIP Silber Kat 1 for 141.80 Euros --> best category seated places + a drink
the stage will most likely be at the "long" side of the stadium again, I guess...
Belgrade-Bucharest-Budapest-Brno