Just enable your gd2 libraries in the php.ini it should be in your apache/bin directory, and it looks like this.
;extension=php_filepro.dll
;extension=php_fribidi.dll
extension=php_gd2.dll
extension=php_gettext.dll
If there is a semicolon there then remove it, then restart your Apache server so it can read the change to your configuration, then run phpinfo() again and it should be there.