When I like the player to save his/her game progress…(say, the player is in level two and wants to save position where in the game so he or she can load it the next time where saved).
how do I script this?
This might be a good place to start
http://answers.unity3d.com/questions/971/how-to-scrip-a-save-load-game-option
Thanks 
Unity Answers… cool
You could also check this out
EZ Game Saver -
http://www.anbsoft.com/middleware/ezs/index.htm
Looks pretty good to me!
Yes, Thanks
I was reading about it
not bad for a single license