I've just posted a document with instructions for installing your own instance of CAREO (including the ALOHA Metadata Server and CAREO Web Application).
This is a first shot, but the document has been around in some form for a while now (actually, it used to be several separate documents).
Anyway, if you're looking to install your own copy of CAREO, take a look at these instructions.
Please let me know if there are any gaping holes, errors, omissions, etc...