I see no problem – I can download them with Firefox and IE on XP and Safari on OSX 10.5.
Is it possible that you are just trying to download the ashx from a link or some other direct approach, or not using an up to date browser ?
You can only access these documents by using a recent model browser in the normal way and accessing the appropriate Web Site support page. Once it is loaded by the browser you can save it and do as you think fit.
