If not directly altering .ioFTPD files then scan through dirs on site to read 'old' .ioFTPD files and then using chmod and chown etc. to update the dir structure. What more is stored in those files besides chmod permissions and ownership? Dir size, date/time, detailed vfs permissions, chattr etc.? Maybe script that can be run from 5.2.x (reading the .ioFTPD files) automatically creating batch cmd script to run in 5.3.x. Or maybe there is a less haxxor fix way to do it?