Im trying to get thumbshots working on wordpress site, I have a premium account.

I installed pasted the code given in the my account from thumbshots into the header.php file on my word press theme.  This displays the default image from Thumbshots on my first page, not what I want.  The url is encoded.  Can someone please list a simple three step process to make this work.

Is there a step by step procedure for setting thumbshots for a Rapidweaver site? Thanks in advance