Like this one you mean?
BB cannot parse the ampersand (&), so you need to change it to the CHR code, prefixed by %.
So that link should be:
.....grosset.co.uk/Travel%20Writing/Australia/images/must-%26cattle3.JPG
(I had to change the first bit to dots so I could display the text and not the picture)
HTH
seacue if that was the problem the link would fail.