to get the second controller working, click on the home key to get the main menu
then go to the bottom where it says controller settings. go to reconnect and then it will say to press both 1+2 on the wii remote at the same time on the controllers you want to use.
if they register that way that means youre good to go
if youre trying to play say wii sports, you have to go to "more" on the "how many players' section of the game. then press 1+2 at the same time and then VOLA more players up to 4 players
hope that helps and happy birthday
also, make sure the settings for the sensor bar are exact to its position (ie above the tv or below) that makes a difference too :thumsup: