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Here's the original layout:
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Those who used the page http://www.google.com/webhp?hl=all to access the old interface probably noticed that Google redirected it to the new interface. You can still use the Hacker interface, the Linux-flavored interface, but the best thing to do is to try the new interface and learn about the tools and filters that could really improve your results. I constantly use the "updates" filter to search Twitter, the "discussions" filter to restrict the result to forums and the "past 24 hours/past week/past month" options to find recently updated pages.