Repacks often include guides to help you maintain the correct proportions (e.g., 550x400), preventing the final video from looking stretched.
The VCam is typically placed on the topmost layer, allowing it to act as a "lens" for everything beneath it. How to Install and Use VCam in Flash 8 ALAN BECKER - Camera Movement vcam flash 8 repack
It appears as a rectangular box on your workspace. Whatever is inside that box is what the viewer sees in the final export. Repacks often include guides to help you maintain
Most repacks allow you to simply copy and paste a single "Camera" symbol into your project. vcam flash 8 repack