So I found this page that explains how to include the wp-blog-header.php so as to be able to access WP functions. I included some of the relevant text at the bottom of this post. I tried it on my 2.7 install but it states that the get_header function doesn't exist.
Anyone know a way with 2.7 that I can include the user name in a static (external to WP) page?
To incorporate or integrate WordPress with your static front page, you can include the header, sidebar, footer, and even a mini-version of the WordPress Loop.
Include the Header
To include the header from your WordPress Theme to maintain a consistent look, add this to the top of the page, using the folder path name you installed WordPress into: