I have successfully transferred all images in the Livejournal Scrapbook over to Dreamwidth for the ice storm post from 2009, and switched out all the accompanying links there, and for the Livejournal side, before deleting the images in the Scrapbook.
I noticed that it had a duplicate entry. My first thought was that it was caused back when I first imported everything years ago, but no. It's that way on the Livejournal side as well, so it's an old Livejournal hiccup that occurred at some point. As there were no comments to that Livejournal hiccup, I deleted it on both sides to prevent further issues.
Edit: Oh, and for those interested: bisharp has made a Dreamwidth Starter Kit, for those that are making the move from Livejournal to Dreamwidth, and need tutorials, customizations, groups for obtaining assistance, and an assortment of other things.