Please post about Dynamic Drive Scripts in the Dynamic Drive Scripts Help section here where I've moved this thread, and:
Please include a link to the DD script(s) in question in your post. See this post
for more information.
That said, this looks like a selector bug in jQuery 1.8.x or a case where the script is getting more finicky about syntax, probably the latter.
To change it to a selector that works with jQuery 1.8.x you can, using a text only editor like NotePad, open up the stepcarousel.js file and around line #220 find the highlighted line:
Change that line to:
var $templateimg=config.$paginatediv.find('img["data-over"]:eq(0)') //reference first matching image on page
var controlpoints=, controlsrc=, imgarray=, moveby=$templateimg.attr("data-moveby") || 1
var asize=(mo . . .
Save that and use that version.
var $templateimg=config.$paginatediv.find('img[data-over]:eq(0)') //reference first matching image on page
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