<font color="0000ff">Tracey Glaim:
"I ... always got the text of the path, no actual image"</font>
Now that is strange ... where did the <font color="0000ff">"text of the path"</font> come from? Apparently something you supplied?
That's the first clue: The "path" is not required at all!
You just embed one or more lines like the following in your message (one for each image):
\image{X}
Where the actual "X" value is immaterial, and will only be regurgitated to you in an {upload} prompt when you are later invited to upload the corresponding file.
(This is more meaningful if you are including many images in a single message; if you use a unique identifier value in each image tag then the upload prompt for each individual file will include that unique identifier, thus serving as a clue to yourself as to which image file to browse for in each instance.)