Joomla doesn't work on 000webhost. None of the Fantastico scripts work. Some of them may be installed, but then when you go to use them... they just don't work.
Joomla 1.5.3: doesn't work because of one 000webhost's FTP incompatibility. It can't even be installed.
Drupal 6.x: doesn't work because 000webhost's MySQL does not support the required features.
WordPress 2.5: file uploader and comment system don't work because of FTP and MySQL incompatibility, respectively.
phpWebsite: the installation guide does not appear.
phpBB avaiable at 000webhost is an old - or better -, an ANCIENT version.
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000webhost: worse than ad-supported free host.