captcha.php

my site is http://www.revereradio.net/tube
can you tell me why i cant see the conformation code meaning no one can sign up?

It seems vshare requirements are not available on your server.

http://www.vshare.in/requirements.html

From your phpinfo, FreeType and ffmpeg-php are not installed.

any tips on the correct with to compile freetype with GD?
thank you for helping me as i now have the ffmpeg installed.