Phil Shotton just released a new version of the Funambol-SugarCRM connector (see http://www.sugarforge.org/frs/?group_id=33).
This version has been built against Funambol 6.5 and SugarCRM 4.5.1b,
but should work with any recent SugarCRM release.

Note that there is no longer any need to modify the SugarCRM installation. This version should be easier to install, faster to sync, and more bug-free (hopefully :D). It also supports merge-sync.