This page is using the TinyMCE core package, within a perl -scripted page, and the link button is not correctly opening the dialog box. Hoping to figure this out soon, and the TinyMCE javascript is VERY, VERY COOL!!!
The HTML version of the page works as expected.
There are more examples on how to use TinyMCE in the Wiki
TEST: Select some of the text below, to activate the link button, and click the link button - the dialog box comes up empty