This item editor still works in 0.7.0, but just not entirely. The only thing I notice not working is the proc editor. I like this editor a lot more than the others, easiest to use and the like. I uploaded it to my webhost as a backup, here's a download since the link on the first page is broken.
http://www.miriscusltd.com/itemeditor.rar
It's a really nice program and needs to be upkept. It also has a nice small filesize because it's not overloaded with unnecessary UI graphics.