Hi Chris, there's one more detail I wanted to point out.

I had three categories within a section:
1. Official news
2. Andrej Kolar's blog
3. Erazem's blog

When I tried to post to #2 and #3 content landed at #1. After I removed aphostrophes from category names (they are now Andrej blog, Erazem blog) posting works like a charm.

My assumption is if categories in Joomla have aphostrophes (Andrej Kolar's blog e.g.), then Blogg-x (mambot or component) has a problem matching them with actual categories.

Other than that (as posted before) a great component.