PS . Just a small addendum

The ahmedi sect split into two sub sects in earlier part of the last century. The offshoot sect are known as the Lahori ahmedis. The website Winston viewed was theirs.

The differences that have occurred between the sects is basically regarding the divinity of Mirza Ghulam Ahmed ( whom the mainstream ahmedis consider the Promised Messiah with whom God has direct contact ) I personally couldn't vouch for the divinity of this man, but i do consider that his opinions and teachings were far ahead of his time and certainly exceptional and worth living by.

Anyhow i would recommend that you also check out Al Islam Online - Ahmadiyya Muslim Community to check out the views of the "mainstream" ahmedis.