This morning I post the PES 2013 Demo Unlock Patch 50 Teams without a stadium addon. Therefore, I post the stadium and fix to the patch. The number of stadiums that are provided there are 30 units.
In this post there is also a fix because there are missing dll problem. Besides missing dll fix the problem, there are also updates for bug unlock tool.
To add this stadium just to extract PES2013 demo folder