UPDATE 2005/16/02: get Version 1.1 of my Collection here
I designed an icon scheme for our beloved Filemanager with Icons for almost 70 cm-commands
(including the new 6.5x commands for Custom colums, Thumbnail view & GoToFirstFile).
You can find my Icon scheme 'Vicons2' behind the following link:
Download Iconset (includes icons for Buttonbar, Drivebar and Filepanel)
All Icons in the ICLs come in 16x16 & 32x32 Pixels and 256 & 16 colors.
View Screenshots:
my TC window
Overview (256 color icons)
Overview (16 & 256 color icons)
I tried to make the icons quite self-explainig and easy to recognize, hope i succeeded at least partially

Suggestions and comments are always welcome!
EDIT:
To use the icons, the following steps are necessary:
open your WINCMD.INI (usually in TCs folder or the windows folder, 'help' -> 'about' shows where it is actually)
In the section [configuration] add/modify the following lines:
1. to get the Drive Icons, insert the following:
drivelib=[your path to the icons]\vicons_2_10_drivelib.dll
2. for the icons for the file panels, add:
IconLib=[your path to the icons]\vicons_2_10_fileicons.icl
3. for modifying the buttonbar icons, select 'configuration' -> 'buttonbar' and exchange the desired icons one by one in the accordinbg dialog
/EDIT