Inserting code for 1 button

Hi there,

I have a wordpress blog twenty-ten theme. (https://www.the-boating-store-blog.com)

I placed the google code for the +1 button in the header.php just before the closing head tag. (I could not find the closing body tag on the template) It is now visible right up at the very top of the web page on the LHS but cannot be seen in IE at all. It’s not placed very well.

I hoped to place it at the top of each post and page.

A wordpress plugin shows up the +1 button at the bottom of the posts, but again it does not show it in IE.

I would like to use the google code as well. Can anyone tell me which of the templates it goes in so that it shows up at the top of a post or page. (I’m assuming it should go before the closing body tag.)

With thanks.