Install Chrome webdriver from http://code.google.com/p/chromium/downloads/list

Use the Capture Page Screenshot keyword

Error in RF Log:
KEYWORD: Selenium2Library.Capture Page Screenshot
Documentation: Takes a screenshot of the current page and embeds it into the log.
Start / End / Elapsed: 20111103 05:01:45.742 / 20111103 05:01:45.760 / 00:00:00.018
05:01:45.760 FAIL AttributeError: 'WebDriver' object has no attribute '_execute'
05:01:45.760 WARN Keyword 'Capture Page Screenshot' could not be run on failure: AttributeError: 'WebDriver' object has no attribute '_execute'

This is also an issue when you have the Capture Page Screenshot on fail