>Okay - But where is that 'triangle' bmp or icon (to designate A or D sorts? I can't find that guy, yet I see it in explorer's list!

Do you mean my icons or the icons of the Windows Explorer?
I made the images (ico, tried also bmp) (partially) myself, and put them in a dir in the search path.
I did a little search for the windows explorer icons, but I didn't find them.
They're not included in explorer.exe.