Manually download the file and place it in the Archive folder - click the above link, save as, and drag it into the Archive folder.

Then, when you do a 'make dreamboximage_root' it will continue from where it left off. It will look to see if you have the package, if you don't, it will try to download it, if you do, it will continue to the next package. Since you already have that package in the Archive folder, it will jump to the next package.