using macromedia contribute, how do I paste HTML code onto a page?

Optional Information:
OS: Windows XP; Browser: Firefox

Already Tried:
I am trying to insert html code so a window appears onmy website linking patients to a order form on a distributors website. I'm being told to paste the following: Click here to buy products. and that's what appears. I am using macromedia Contribute to update my site. it works for text but doesn't appear to do this. Is there a way to paste this stuff in and have the other sites link appear?