Hi Dan,
Seemingly the Google +1 button may not be visible to all browsers. I was unaware of this issue until I saw your comment and googled this (This stuff is all new to me). What browser do you use? I am on safari (Mac) and Firefox (for mac) and I can see the button. Do you have a second browser you can try?
Please send me link to you site and I will add you to my +1
Best regards
John