I've just submitted v3.0.5 of News Box Manager (v3) for the Zen Cart moderators' review; I'll post back here when it's available for download.

This release contains changes associated with the following GitHub issues:

#20: zc157, missing admin's $template_dir.
#21: Correct admin duplicate-constant notice.
#22: zc157, admin-tool 'action' icons don't display correctly.
#23: Individual-article title overwritten if left-sidebox is enabled.