google rich snippets not showing on google search but shows on testing tool

there is 开发者_JAVA百科a strange problem, i followed each and every step as told in

http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=146897

implementd the review section, hreview aggregate, tested it on richsnippets toll, even this shows correctly:

But when i go to google and search this page, there is no change, now the questions are:

1) What is the problem?

2) How long google takes to show these changes?

Best Regards

From what I remember hearing, Sometimes it can take a few months until Google re-indexes the pages, only then will it show up. For smaller sites it can take longer to re-index, sites with lots of updates are re-indexed more often. Again, that's just what I heard from a friend.