Hi,
The blog is part of the mojPortal.Features set of projects, the files get copied to locations beneath Web folder by post build events.
You should not modify any mojoPortal code unless you clone it into a custom feature, otherwise you will not be able to upgrade without losing your changes.
If you have further development questions please post in the developer forum. Do not report issues or questions about source code in the bug reporting forum.
Best,
Joe