Hi,
I did some hacking and fixed 3 issues:
1) PHP error notices - fixed by adding PHP error control operators.
2) Table sorting interfering with search form’s settings, as e.g. in search form you set sort order to be alphabetical, but since default table sorting is set to be by date you get list of entries ordered by date. I fixed it by introducing new option - “None” - in extension’s “Sort order” setting. If “None” is selected, then no default table sorting will occur on page load, so no interference with search form’s settings will occur.
3) Extension prevents deselecting all checkboxes by clicking topmost checkbox. I fixed it by removing functions which tablesorter javascript has bound to “Check all” table header cell.
If you like my additions, fell free to use them in official version.