Cochrane Library has made some enhancements, which you can read about here. There is also a useful summary of these changes, in the Royal Children's Hospital (Melbourne) Update at http://www.rch.org.au/library/update.htm (thanks to my colleague Sarah Sutton for this).
On a related topic, we have access till the end of the year to the Wiley journal Evidence Based Child Health, which presents new and updated reviews from the Cochrane Library. If you are University of Leicester and find this journal useful, I would be interested to know. The journal is within Wiley Interscience, or you can go straight to
http://www3.interscience.wiley.com/cgi-bin/jtoc/112100413/. I am here.