I updated to BlogEngine 1.4.0.0 last week. That was more work than I hoped but overall has been a good move, not because BlogEngine is any better, but because it forced me to update my web hosting accounts. Now that the host updates are complete, I can look at using BlogEngine more. So far the 1.14.0.0 version has annoying bugs in the posting control. I lack the time to research it all, and I am only slightly tempted to use the intermediate build versions.
The most annoying defect is that none of the script-driven methods work correctly on the posting pages (Add_entry.aspx). The HTML view and link add/edit functions do not work. It is painfully difficult to edit or format my journal entries. This morning I resorted to updating the post with the plain text, then editing the XML data file and inserting the content in the way I like. Ugly.
I have research and fixes to implement and no time to do it. I am not sure if it is a permissions issue on my host or bad script in the pages (I suspect the later). Double ugly.