I've downloaded PHP extension files from http://sourceforge.net/projects/ffmpeg-php/

You will find plenty of files within the package. I wish to realize that how do i make use of this like a PHP Extension. I figured they'll provide .dll files as other extension. However in this situation you will find plenty of file,

I'm running on home windows 7, PHP 5.2.9, Apache 2.2.15

Any help could be appreciated.

The files you downloaded would be the source code for ffmpeg-php. They should be put together and also, since you are on Home windows, that is probably not that easy.

Rather, follow these instructions: http://ironlasso.com/install_ffmpeg-php_windows.html. The hyperlink incorporate a connect to a pre-complied version which can make your existence a great deal simpler.