I have absolutely no problem scanning for orphans using Delphy's program. Forgive the rather obvious suggestion, but are you all making sure to check the "show orphans" box once the scan has finished? If so perhaps there is some other issue causing the problem that I seem to have (for once) not encountered.
I'm pretty sure I am, but I will try it again (making sure I do) and see what it does.
Sometimes the obvious is the answer.
EDIT: ChloroformDreams you may have been right and thanks so much for pointing that out!!! It does not "highlight" them but it did give me a list where I can delete.
I have on other question...
It says I have 448 "orphaned" files, but some of them look like files I use. Are these really "orphaned" files or is it maybe that my meshes may be in different folders. I mean it does check all folders right?