Where can I find the reset button?

sherilyn, it does not look like your camera has a reset button. Looking through the service manual, as well as the user instruction, this appears to be accomplished by going through the initialize option. Cameras without a reset button require a manual power reset :

Performing a manual power reset

Turn off the camera.

Remove the battery pack.

Remove the button-sized lithium battery.

Allow the camera to remain without power for 30 seconds.

Reinsert the button-sized lithium battery.

Reinsert the battery pack.

Turn on the camera.

The instruction manual can be found on here. Hope this helps, good luck.