non-question about directories, please please please forgive me

[Francisco Diaz Trepat - gmail]

Hi all, I feel very embarrass to have to ask this question and please
feel free to make fun, insult, or whatever, your time is much much
important. But I am in a dial-up and can't get the answer.

I want to configure a directory ("~/Workspace") to have a very nice
image (please sugest) and have that image appear everywhere the folder
is shown, exactly like the home, desktop, video, etc.

How can I do this? I tried to set the Icon,  and it places an image
for the folder, but not in Places menu or Places Panel in Nautilus.

sorry again,
f(t)