Desktop Icons

[Keith Powell]

Sorry if this is a very basic question, but I have only just started 
using xfce4. First impressions are that it is outstanding, and I would 
like to use it instead of KDE! However......

The desktop icons are all just 'folders' and I would like to change them 
to the usual home, wastebin, etc, icons. Also, I would probably like to 
add a couple of new ones. But I can't find how to do it. I really have 
looked in the list and forum archives. Also, I have made a hard copy of 
all the manuals, but can't find the answer in there.

Please could someone help? Even tell me where to look for the answer.

Many thanks

Keith