I have been using ioftpd 5.8.5 with ioGUI with no problems. I noticed the newer version of ioGUIExt in the scripts section so I thought I'd give it a try. I couldn't make it work at all, until I deleted ioGUIExt.ini. What is that exactly? And what's the trouble?
P.S. It wouldn't surprise me if ioGUIExt.itcl didn't work with 5.8.8, none of the tcl scripts I've tried have worked with 5.8.8...or 5.8.7...or 5.8.6, so I see no reason to upgrade until the http daemon is fixed anyway.
