Adding vasfmc gauge to DF727 VC

Hi,I'm trying to modify the dreamfleet boeing 727 with vasfmc, a freeware fmc (http://vas-project.org). I've downloaded and installed the 'gauge' version.I found a panel mod here on avsim which adds the the integrated simavionics fmc to the VC. When I open this panel in fs panel studio I can see ISG fmc gauge in the "VCockpit08" window.I removed this fmc and added the vasfmc. However when I look around in the VC there is just a black spot on the place where I placed the vasfmc. I also tried to add and new window and then addthe fmc but then it is also black.What am I doing wrong? I'm total noob in modding panels.Thanks!