The black screen issue could be a video mode error. Wine is still a bit rough around the edges when it comes to handling full-screen smoothly.
Try running the game in a window. To force Desktop Mode (which can be set on a per-application basis in winecfg), change:
Code:
wine WallaceGromitDemo.exe
to
Code:
wine explorer /desktop=Wine,800x600 WallaceGromitDemo.exe