You can clone with
HTTPS or Subversion.
In the visits graph the latest value will not be show but an "NaN".
PHP: 5.1.6 on Apache 2.2.3
Any error or something in the webserver /apache error logs?
your php is 5 year old, is it possible to upgrade?
Guessing it's a json_encode bug in the upgradephp library.
(In ) fixes #2500