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1. Check your document type. Choosing a doctype [webmasterworld.com]
An invalid doctype renders in Quirks mode. Standards mode and Quirks mode require very different things to display at least similarly in different browsers. Figure out what doctype you're using, if any, and make it a habit to use a valid doctype.
2. Validate the document. W3C Validator [validator.w3.org]
A misplaced quote around an attribute can cause an entire page (or section of it) to go blank.
3. Isolate the problem. Save a version of this page and begin stripping out chunks of the page by trial and error until you get it to display.
DW code uses Javascript that is not often the best approach, even today - I just upgraded to CS3 and noticed that Flash still publishes with <script language="Javascript">! While I've no idea if that's your cause, the three steps above will help you isolate the precise problem - then someone can help you fix it.
As it turns out it was the script mentioned in the above post so that could be a good place to start.