Go to
http://ps2.ign.com (the direct link to the problem page is below)
Visit the "guides" section in the left nav. Note: you might need to be a member for some guides, so you'll need to sign up.
On the guides list, I clicked "The Godfather", or just go to
http://guides.ign.com/guides/665843/
Click the "walkthrough" link (which is
http://guides.ign.com/guides/665843/page_4.html )
You get a "sorry, page not found" page.
When I try this same scenario in Webkit, I get the correct page every time. Same for FF 1.5.
I've tried a few of the guides, and ALL the walkthrough links I've tried so far are broken the same way, but all work in Webkit or FF.