There is a brief article by a member of the Qadiani Jamaat entitled "Ahmadis are Muslims" on a general Muslim website, www.understanding-islam.com. It is dated 18th April 2004 and is posted by lamblett@yahoo.com

You can read it at that website but I have also reproduced its contents below.

Article begins


I am fed up of being called a non muslim. We are muslims we believe in everything you do. The only difference being that we believe Hadhrat Mirza Ghulam Ahmed to be the promised messiah and Mahdi. NOT as you say a prophet! Prophet Mohammed (S.A.W) is the last prophet. Why don't you educate yourself a bit more and understand that we are no different to you. We have our own charity humanity first, we have built several beautiful mosques and we have the backing of the Government as we pose no threat to them. We believe in peace and serenity and the almighty Allah. Please try and accept this as we are here to stay. Feel free to visit our website www.alislam.org

Here is a brief overview of Ahmadiyyat:

The Ahmadiyya Movement in Islam is a religious organization, international in its scope, with branches in over 174 countries in Africa, North America, South America, Asia, Australasia, and Europe. At present, its total membership exceeds 200 million worldwide, and the numbers are increasing day by day. This is the most dynamic denomination of Islam in modern history. The Ahmadiyya Movement was established in 1889 by Hadhrat Mirza Ghulam Ahmad (1835-1908) in a small and remote village, Qadian, in the Punjab, India. He claimed to be the expected reformer of the latter days, the Awaited One of the world community of religions (The Mahdi and Messiah). The Movement he started is an embodiment of the benevolent message of Islam -- peace, universal brotherhood, and submission to the Will of God -- in its pristine purity. Hadhrat Ahmad proclaimed Islam as the religion of man: "The religion of the people of the right path" (98:6)

End of article


As you can see, this poster states that the difference between other Muslims and his Jamaat is:
Quote:
we believe Hadhrat Mirza Ghulam Ahmed to be the promised messiah and Mahdi. NOT as you say a prophet! Prophet Mohammed (S.A.W) is the last prophet.