rolan: there is no builtin log commands. ioA I know offers syslog/cmdlog/etc site commands. Double check that you have the required ioFTPD.ini entries and permissions set.
I've started work on 6.3 with a big to-do list of cool features (see the feature thread). The first item is saving crash information in the log directory so after crashes people can send me more detailed information than just the address
I've also become convinced that the version of TCL we've been using has issues so I've upgraded/rebuilt TCL/PHP for the upcoming release.