All you have to do is to search the site looking for codes - look under the DW2000 logo. Here is an example of a code:

Get a piece of paper out or open up a text program to jot down the code. The letters mean which order the digits go as there are 6x5x4x3x2 possibilities - answer at the bottom of the page. A is the first digit, then B .... and finally F. So you get ABCDEF. When you have got all 6 digits, on the address field (@ the top) type in http://www.georgewood.clara.net\<<code>>.htm (no l). If ERROR WEB - PAGE NOT FOUND appears, try again. However, if WAHOO YES appears, then well done code cracker.
The answer to 6x5x4x3x2 is 720.
Boff Boff.