It does seem that the logging directories are stored relative to $mircdir instead of $logdir. though, which seems a little odd.
Dunno, to me mIRC always ses $mircdir as root and as such we know to put paths relative to $mircdir if non-specific or to 'root' proper if outside the mIRC folder eg. C:\
I wouldn't like one set of commands to be different from the others. There's
a similar post just now along the same lines...
btk