Was this the link? http://www.boonex.com/forums/topic/Admin-Module-Suggestion-Default-Privacy-Editor.htm
I found a few others - none for the sites module but HL at least described the problem. @Geekgirl - I see you touched in the famous "null" issues. Did they ever fix that is search? Probably not, if you have two dropdowns in a search it won't work because it is impossible to make one if the "null". Worked fine in D6 - then Boonex explained that they "forgot" some code or something when they built D7 and have promised it for every version since.
Classic Boonex - you find something that you think will really improve your site, and you find that a critical function is broken. So you go to fix that broken thing, and then you find there is another broken thing you must fix first. Soon, like a lobster gradually boiled to death you find that you are no longer building your community - you are trying to make Dolphin work instead.
ok, got off on a tangent here. Probably no "fixes" - that is too high a bar here - but any workarounds? This doesn't seem like it should be such a big issue.