I have tried using the Alt + 0169 also tried Alt G. neither method works, the symbol does not appear.
You need to use the alpha-numeric keys on the right side of a standard desktop keyboard
You can also access the symbol via the character map found under accessories on a Windows machine. Then, copy/paste
A really neat way is from within Elements. Access the Custom Shape Tool, go to the Symbols library, and the copyright symbol is right there.
Here is more on using the Character Map to insert special characters
http://home.earthlink.net/~msand42/PSE/special%20characters/album/
North America
Europe, Middle East and Africa
Asia Pacific