beystr jaan, thanks for your questions. Of course all religions are from God; in fact they are all one and the source of guidance for humankind, but for different times and places. They are one, but not the same. They are one in the sense that they all originate from the same source, but not the same since they have appeared at different times, and spoken to different challenges. As we have evolved, so too the religion of God in keeping with our struggles and challenges. This is called "progressive revelation" meaning that the Will of God is progressively revealed to humanity. Just as we learn more with each grade in school, so too is our spiritual education through God's messengers.
masoud jaan, with all due respect, how can you tell with any level of certainty that God never sent any religions? In fact logic would seem to indicate the opposite that if in fact there was a creator who was All-powerful, All-knowing, All-loving, and All-wise, He would not be aloof, but would want to keep in touch and help us along our path of discovery and maturation as a specie. This is why we have to have a pragmatic approach and see the importance of both science and religion in human life. The problem is not with religion, in this case with Islam, rather in attachment of its followers to a name and to the "lamp", rather than to the "light". We should be followers of light in whatever lamp it appears, but not the lamp itself. This is our limitation, not the limitation of God's religion. God never intended for any religion to endure forever because our challenges are different in every age, it is us who perceive a religion to be the last and final. It is also us who perceive to beyond reform or in need of one, otherwise really God does update His religion frequently as witnessed throughout time. If it has happened in the past, it will happen again in the future.
You are correct that some Muslims have created an obstacle in the path of progress and modernity, so it is they who need to be reformed, because their faith and religion is founded in prejudice, not reason, it is rooted in imitation, not understanding, it has been inherited in prejudice, not discovered for oneself by investigation. We see their examples every day on this very site and in all aspects of life among Iranians who are among the most prejudiced people in the world. They ridicule what they do not understand without taking the time to examine the facts and thereby not only deprive themselves of the truth, but also retard the progress of a nation. This is our challenge in this day, to break the shackles of dogma, imitation, and prejudice and read, think, analyze and understand for ourselves. As much as we like to expedite, for this change to be lasting and meaningful, it has to take place by willing participation and at the grassroots level.
It is as simple as this. For centuries now, and especially the last few decades, Muslims have witnessed Islamic teachings in action in this society and can decide for themselves whether or not they do apply to the challenges of our time. If they do, then there is no problem for them, but if they don't and we imperfect humans have discovered this fact and made this observation, don't we think that He who is the creator has also recognized this and sent new guidance for us? The challenge then remains in the discovery of this message and the application of its teachings to the problems of our time.