When enabling the OpenAid Blog module, the OpenAid Countries, OpenAid Images, and OpenAid Tags/Topics modules are also enabled, providing three content types (Author Profile, Blog Post, and Image) and a Blog landing page.
Author Profile
Rather than Blog Post authors defaulting to the user who created the post, the author is instead a reference to a specific Author Profile. This is due to the fact that bloggers do not always have accounts on the website itself, but instead content authors oftentimes post on behalf of authors.
Create an Author by navigating to Admin->Content->Add content->Author Profile or /node/add/author-profile
Blog Post
When creating a Blog Post you can now attribute the post to any Author Profiles created by referencing them in the Author field.
An empty Topics vocabulary is also created, which you will need to add terms to first before tagging your post with topics. The same is true for Countries. Add a country in a similar fashion as adding an Author Profile and you can then tie Blog Posts to specific countries.