I've just submitted v3.3.3 of the Sales Report to the Zen Cart moderators for review; I'll post back here when it's available for download.

This release contains changes associated with the following GitHub issues:

#18: Correct "missing" admin menu-entry on initial installations.
#19: Correct incorrect tax calculation
#20: "Suggest" a .csv file extension on CSV downloads
#21: Move menu-name into a language extra-definition (enables translation).
#22: Enable date-formatting overrides.