Hi Barry,
For a partial reply, my setup in windows7 is as follows:

At C:\ProgramFiles(x86\MoI3.0\ui,
I have the following:

a. subdirectory customui, (contains Max's customui)

b. subdirectory nodeeditor, (contains Max's latest stock version, 0.93)
(I did make a few minor changes such as Quartz, Different cursor, and lighter background color.)

c. subdirectory nodeeditor.93Mod, (contains Latest Mod version, with more content)

Under customui, to access item b., I have 99 NodeEdit.htm (no - sign), which has as its last line:

command="moi.ui.createDialog( 'nodeeditor/index.html', 'resizeable,defaultWidth:680,defaultHeight:420', moi.ui.mainWindow );">NodeEdit</moi:CommandButton>

Also under customui, to access item c., I have 98NodeEdit2.htm (no - sign),
which has as its last line:

command="moi.ui.createDialog( 'nodeeditor.93Mod/index.html', 'resizeable,defaultWidth:680,defaultHeight:420', moi.ui.mainWindow );">NodeEditMod</moi:CommandButton>

So either version of nodeeditor can be accessed through custom UI.

No comment on hiding edges.

- Brian