If you are doing this - please pull the whole upload/manage file thing together.
The browse server definitely needs a thumbnail view, off the top of my head, some of the windows don't have cancel close buttons and the preview seems crude, and pls add delete option mentioned previously.
Big one for me - iRite desperately needs an easier config. As you know, current config requires the developer to discover all sorts of path info and put that into the files by hand. For me, I'd just want to tell the app to use folder xyz for uploads - tell iRite where they are in relation to the my upload folder and have done with it. Only thing left - change those permission on upload folders when files are on server.
BTW - The new look webassist site really shows what can be done graphically - hope you can apply some of that to the interface on iRite manger.