well, you need to set up a new db for it, or use the upgrade like I've said here in this post:
http://herc.ws/board/topic/4669-is-rathena-db-compatible-with-hercules-bd/#entry30183
you may delete some rows in phpmyadmin regarding this character at sc_data table, or create a script to use sc_end sc_all; and delete all statuses of that character
nice idea, can't view the file atm so I want to ask will the player be warped to where he was before being recalled? would be nice if it act like this maybe add a config setting (warp players to 1: prontera , 2: savepoint, 3: source place (the place where they were before warped to event map))