Correct img format for browser widget.

[james at thehales.id.au]

Can someone tell me the correct format for an image src tag to use with the browser widget?
I have a folder of HTML and an associated folder of images yet I am unable to get the images to show.
They are .png.
I have tried 
Src = "full path to image"
Src = "relative path to image"
Src ="file://fullpath to image"
Src="binfile:/full path to image"

None of them work, although the last does show a ? Icon where the image should appear. All the others show nothing.

James