Hi Rob:
The AzureStorageBlob library, which is used by that example code, is still in active development and we haven't yet published a release.
If you'd like to give it a try (in its development state, of course), you can clone the Git repository and import the AzureCore and AzureStorageBlob libraries. Keep in mind, this code is still in a very early state and should not be used for production applications.