Go to the main page at coinsandpins.com Under their main banner it says Activate, get codes, click here for geocaching activation codes. It is on the right hand side of the page. Click that and enter your tracking numbers and your codes will be given to you. Hope this helps.
Thanks!! NO WONDER WE CAN'T FIND ANY GEOCACHES, haha, JK, can't even see the activation link on a web page... I will go away now with a red face... Thanks, again.