If you have Pro Pack you can set the CSS under General Settings or by editing your selected Pro Pack theme file (in ./css/).
The results formatting was changed because it was too restrictive using fixed spaced table cells. This makes it nearly impossible to work with a number of new WordPress themes especially responsive themes that tend to use CSS and DIVs. That is the preferred methodology for page structures these days. Without making that change the plugin would not work for many newer themes. It also makes it very difficult for other developers or site designers to move results listings around to their liking.
Of course with any change some of the 500,000 themes and 50,000 plugins out there will not work as well.
If the updates don't work with your theme/plugin mix you can always revert to the prior release here: