I don't think anyone has ever done just one image with this script. At least not and had a problem that they asked about it here.
Anyways, even with a 'normal' crawler, you shouldn't specify style inline for the container.
So try it without the highlighted:
If you want more help:
<div class="marquee" id="mycrawler2"
<img src="test.jpg" width="2000" height="450"/>
inc: 50, //speed - pixel increment for each iteration of this marquee's movement
mouse: 'cursor driven', //mouseover behavior ('pause' 'cursor driven' or false)
Please post a link to a page on your site that contains the problematic code so we can check it out.