Trying to download Photoshop CS3 Extended installer

I clicked on the link at:

http://helpx.adobe.com/creative-suite/kb/cs3-product-downloads.html

and got the error:

HTTP ERROR: 404 /support/downloads/dlm/main.jsp

RequestURI=/support/downloads/dlm/main.jsp

I must stress that I have a license for this software, but it would be convenient to archive this installers plus the update installers for future use (more convenient than having the cardboard box and CD).

Alun