This issue was fixed in release phase 1.1
A brand new blog user on their first login is not able to see the ‘My Blogs’ link from the landing page, although a fellow glow user has given them access to a blog using the ‘add user screen’. They can only see ‘Create a blog’ link and hence will be compelled to ‘Create a blog’ to get through to their dashboard or to even log out for that matter.
A fix for this will be put in place in a subsiquent release.
Use a link to the blog, on first time access. This means if you create a blog and add users, direct the mstraight to the blog via url the first time.