The Scalix Resource is based on the code of the Kolab resource as both groupware servers use a similar storage concept (storing pim items as email attachments on an IMAP server). However the Scalix Resource has several modifications, e.g. the XML storage type was removed and freebusy handling is done via a separated TDEIO slave. If you have any problems, questions or suggestions contact me under Tobias Koenig <tokoe@kde.org>