I dun get why they keep altering superman origin either. Just use the basic Man of steel/ donner movies origin that most people are familiar with.
 kal-el rocketed to earth from the doomed planet krypton, his father Jor-el and his mother Lara new the earths yellow sun will give Kal-el great power. Kal-el was found in smallville kansas buy the middle-age married couple, Jonathan and Martha Kent. They took him in as thier adopted son, and named him Clark Kent. As Clark grew he began to develop amazing powers, but he began to feel different and somewhat alone from his peers. Finally needing answers, 18 year old Clark confronted his adopted parents about his origins.
 The kents new it was time, and they showed Clark the space ship they found him in. The kents had the ship hidden in their shed for years. The metallic vessel had a huge S like insignia on it. When Clark touched the S, and he recieved a  hologram message from his bilogical parents. They told him where he was from, and told him who he was, and why he was so different. After seeing the message, Clark was angry and in disbelief and ran off at superspeeds out the shed. The kents tried to chase after him, but clark had gotten way to fast. 
As Clark ran, he felt that he was getting very light, and when Clark looked down his feet were off the ground. Clark then dicovered his most amazing power, the ability to fly. Clark took off into the sky, enjoying every minute of flying. Clark flew through the clouds, and his anger had slowly gone away. Clark then flew back to his home, where his adopted parents were waiting desperatly to see if he would return. Clark landed in front of them, and they were amazed but happy to see their son has returned. The kents then all embraced in a one big hug, as Clark had accepted who he was. Clark later told his closets friend/girlfirend cheerleader Lana Lang about his abilities. Lana was surprised and excited, and after Clark took her for a fly around town, she swore to keep his secret forever. 
Everything after that should be basic as well, Clark travels the world for 5 years after highschool, getting interested in Journalism and secretly helping people in trouble. Clark then takes a 2 years course at college, and earns a journalism degree. Tired of haveing to help people in secret, Clark asks his parents to make him somekind of suit so he can help people useing a public identity. Martha kent then uses the sheets she found clark wrapped in, when they found his ship.  She then makes the classic superman outfit, she makes it skin tight, as they discover clarks body somehow generates a protective aura an inch away from his body. Clark personally decided to use the S insigna that was on his ship, and places it in the middle of the suit. After devising a disguise involving glasses, a somehwhat geekish personality, and a heavily greased hair, Clark sets out to Metropolis to make his mark on the world.