You can install the code for the provided 2nd sample slideshow (2nd in the sample code creates something like the live demo in the bottom right position) and there are 2 ways in which to disable the description bar - either don't define any descriptions in the imagearray[] and just use;
Code:
["http://mywebsite.com/path/to/img.jpg"],
or set descreveal to none;
Code:
descreveal: "none",
The full code is provided in the DD demo page so install it as-is in your website to begin with, and then work through stripping out the parts for the other demo that you don't need.
Sadly I not familiar with Blogger so I don't know to what extent you can manipulate template code directly, or whether they provide input boxes that allow custom blocks of code to be added, so you will need to consult the documentation or maybe ask somebody from the Blogger community for advice on doing that.
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