1. Edit page on which you want to display tour dates and make sure HTML is enabled.
2. Paste your specific widget code, such as
3. Highlight from "<script ..." to "</script>"
4. Ctrl+X or Cmd+X to cut this part of the code
5. Save your page with only the "<a..." code
6. Click Edit HTML
7. Find the end of the header section by using Ctrl+F or Cmd+F to search within the HTML window, and type "</head>" with no quotes
8. Before the end of the header section (</head>) use Ctrl+V or Cmd+V to paste the "<script..." code that you cut before
9. Save the changes
Additionally, the Amplify Tumblr theme natively supports Bandsintown. To install the theme, go to http://www.tumblr.com/theme/33176. To learn more about Bandsintown integration within the theme, check out this blog post.
...Also we love Tumblr and if you're on Tumblr you should follow our Artist Blog or Corporate Blog.