I just spotted the link on the Scrapblog site – their Scrapblog Builder is available to the public!
This is what they have to say:
As you visit us and create your scrapblogs, please bear in mind that we’re still tidying up and tying up some loose ends. We’re a small team that has worked incredibly hard to get to this point and are still in test mode with our friends; our “official” launch was due for early next week, but word got out a few days early.
Having said that, we will strive to make your experience more enjoyable and your feedback helps us serve you better. If you like what you see or have some suggestions for improvement, please leave us a comment or email us at feedback[at]scrapblog[dot]com.
Have fun with it – and let me know where to check out your creation at!