CISDB-Admin is a WebObjects application for remote administration of a directory. I've made it publicly available, just because. It's a nifty little dynamic application, with some cool features like editable menu options for search criteria and pluggable layouts for search results. Originally it was centered around LDAP, but I think I've managed to make it compatible with any standard EOAdaptor.
Feel free to download the source and take a look at it. It's covered by GNU's GPL, so have fun. The usual warnings go with it though: it fit my needs, but it may not fit yours, and I take no responsibility if it corrupts your database or blows up your server or anything else like that. On that happy note, I would like to hear about it if you make use of anything in here, so drop me a note at rkrebs@cis.stanford.edu.
There's also some information on Installation and How It Works, but these pages were geared towards the people for whom this app was designed, and might not be too useful for you.