Thanks Adam for the response.
Ok, this seems to work if everything is in the path provided above but it does not work if it is in subdirectory under this folder.
Here is what I am doing:
1. Click Insert Template. (The folder location comes up correctly)
2. Click on a folder.
3. Select the HTML file. (The image does not appear correctly in the Preview pane)
4. Click OK.
At this point the URL in CuteEditor reads:
<img src="http://my.website.com/a/1234/header.jpg">
It should be:
<img src="http://my.website.com/a/1234/myfolder/header.jpg">
Thanks in advance.
(BTW, do you know that Select Tags on your AddPost.aspx does not work correctly. Dialog come up but then it never updates the Tags.)