Layers, revNavigator, & DataGrids

[Paul Looney]

Fellow Programmers,
For many years I've used the revNavigator plugin to layer objects -  
to move objects to any layer, into and out of groups, from one group  
to another, etc.

Somewhere around Rev 3.5 the revNavigator broke. Dragging objects in  
the list would only put bookmarks at the top of the list - leaving  
the selected object in its original layer. Using the Option key to  
move objects in groups (per the instructions) did not help. I am  
referring to revNavigator 3.0 RC 1.

I can open the stack in an older version of Rev, with the older  
version of the Navigator and relayering works properly. BUT...

Having adjusted the object layers in an older version of Rev, the  
DataGrids will not work on the stack when it is reopened in LC 4.0 or  
4.5.1. All of the grid objects are there but they have no  
"intelligence":
1. setting the dgText of the grid group does nothing - does not  
produce an error, using a "try/catch" shows nothing
2. the columns are the same size but have no column widths in the  
Columns tab on the object inspector
3. "the behavior of group 'DataGrid'" returns empty, not "button id  
1005 of stack "revDataGridLibrary""
The original grids in the stack are broken.

I can add new grids and they work properly. BUT...
If I replace the old grids with new ones, I have no way to put them  
in the proper layers - short of completely rebuilding a very complex  
stack.

So, two questions:
1. Can you recommend something for layering objects in LC 4.5.1 and  
later?
2. Is there a way to fix the broken datagrid described above?

FYI, LC 4.0 tested on OS X 10.4.11 on a G4 PowerBook and LC 4.5.1  
tested on OS X 10.6.6 on an Intel Mac Mini.

I really appreciate your help.
Paul Looney