Why don't you just tell us about your beliefs..
According to one Gnostic myth the shaping of the material world was the result of Sophia, who was often decribed as an emanation of eternal light, an "immaculate mirror of God's activity," and as "the spouse of the Lord." Through her desire to "know the Father", she was cast out of the Pleroma (the gnostic heaven) and her desire gave birth to the God who created the material world. Although she was eventually restored to the Pleroma, bits of her divinity remain in the material world.
The inferior God created by Sophia's desire, also referred to as the Demiurge, is the Creator God of the Old Testament. Due to his inferiority, he is not seen as good but rather an evil, angry, violent God. It is the fault of this God that the world is in the mess that it is, and due to the fact that he created it, the world is evil. The higher transcendent God is not a creator of the material world, and instead is a nurturer of the spiritual. The only hope for humankind, while locked in this evil shell of a body is to spiritually transcend this world and deny the body.
So let me get this straight.. The unknowable God was far too pure and perfect to have anything to do with the material universe which was considered evil. Therefore, God generated lesser divinities, or emanations. One of these emanations, Wisdom desired to know the unknowable God. Out of this erring desire the demiurge an evil god was formed and it was this evil god that created the universe. He along with archons kept the mortals in bondage in material matter and tried to prevent the pure spirit souls from ascending back to god after the death of the physical bodies. Since, according to the Gnostics, matter is evil, deliverance from material form was attainable only through special knowledge revealed by special Gnostic teachers. Christ was the divine redeemer who descended from the spiritual realm to reveal the knowledge necessary for this redemption. In conclusion, Gnosticism is dualistic. That is, it teaches there is a good and evil, spirit and matter, light and dark, etc. dualism in the universe.
Is that about it?