Helium/Gantry + Tablesorter

I have a page set up with a table (generated from a CSV file using Table Importer). I then use the Tablesorter plugin to add sort/filter functionality.

I want to use the Helium theme/Gantry plugin to build a layout. However, when I activate the theme, my table loses the Tablesorter functionality. The table is still imported and displayed, but in static form. Any ideas? Perhaps something in Helium is overriding the Tablesorter plugin? Appreciate any help/ideas. Thanks!