I installed the lime light template and added the S5 Tab Show to it. I noticed there is an issue with the tabs at the bottom of the tab show: (you can even see it at the demo page http://www.shape5.com/demo/index.php?lime_light
The problem is that the link in the tab is not covering the whole tab but only the bottom half of it. Move the cursor from up to down and see when the pointer changes from arrow to hand to see what i mean.
I think it would be nice to fix this, especially for the sites where the tab switching is triggered by a click and not just a hover.