Open Source – there is no support and no documentation?
One of the surprising characteristics of the Open Source world is that support is ‘generally’ very good. You may have to do a little work to get the support but most Open Source applications have mailing lists, discussions forums and IRC channels to provide the support you need. The folks who provide this support are volunteers, read or search the mail-list archives before you post the 20th request for the same information – you may get a gentle reminder that this topic has been covered fairly frequently. Documentation is generally surprisingly good and in some case just plain excellent. PHP, Python and OpenOffice are especially notable for the quality of their documentation – these are not exceptions.