Hi MindSet, for find and replace on object names, check out here for a BatchRename script that can help with that:

http://moi3d.com/forum/index.php?webtag=MOI&msg=10416.2

The way it works is it will export all object names into a text file. Then edit the file with any text editor and use the text editor's find and replace function. When you are done save the text file and push "Done" in MOI and it will read the text file back in and apply changed names.

- Michael