If you're new here, you may want to have a look at a few tutorials.

How to find your Site-Specific URL - a half-assed tutorial of finding the correct link to add to the linkey machine for each challenge

How to add the Challenge button to your blog - My experience is with blogger, or blogspot - so here's some help on how to add the button.

How to add links within your blog post (or anchor text, or hyperlink) -  what i hope is an easy to follow tutorial on creating links within your blog post.