There has been some change in the behaviour of #+CAPTION in case of tables made by source blocks. In the old exporter, #+CAPTION just before #+BEGIN_SRC was sufficient to place the caption before the table when the file was exported.
The new exporter does not produce captions the same way. When I looked through the list archives, I found some discussion ( http://list-archives.org/2012/08/20/emacs-orgmode-gnu-org/o-new-exporter-and-latex-attributes/f/2837855005, and http://www.mail-archive.com/emacs-orgmode@gnu.org/msg57188.html ) It is, however, not clear if the problem was finally resolved and what is the recommended practice. Could somebody explain? Vikas