The Kdenlive team does not provide binary packages for your your distribution. Package management is usually left to the distributions. Here you will find instructions on the easiest way to install Kdenlive for you:
Debian, Fedora, Gentoo,
Mandriva, OpenSUSE, Slackware, Ubuntu
|FreeBSD ports||MacPorts for Mac OS X|
Other useful resources (images, stickers, …) can be found here.