Two glitches tripped me up installing ccc9.3:
1) The zip files unpacks a directory ccc9.3/admin/includes/languages/English ? blindly copying that over caused grief on my case-sensitive Linux box since admin/ccc_config.php expected the files to be in "includes/languages/english"
2) The changes to includes/header.php had ' ? ' which got garbled cutting and pasting to a remote ASCII terminal. The fix was to replace the ? symbol with its character entity raquo (reviewing this post I saw I had to leave out the leading & and trailing ; to stop the character entity being replaced by its symbol by this editor, that may have also been the problem in ccc9.3's installation instructions.)
A third problem I haven't managed to fix is that imagemagic1_5 which was working before I installed CCC broke. A temporary fix has been to turn Image Magic off from its configure panel, but if anyone knows how to get CCC and Image Magic working together, please share the secret.