Download the plugin
Extract the contents of better-search.zip to wp-content/plugins/ folder. You should get a folder called better-search.
Activate the Plugin in WP-Admin.
Goto Settings > Better Search to configure
Goto Appearance > Widgets to add the Popular Searches sidebar widgets to your theme
If your question isn't listed here, please post a comment at the WordPress.org support forum. I monitor the forums on an ongoing basis. If you're looking for more advanced support, please see details here.
Several customization options are available via the Settings page in WordPress Admin. You can access this via Settings » Better Search
The plugin also supports the use of template files within your theme. You can create a file called better-search-template.php in your theme's directory and the plugin will use it to display the results.
Take a look at http://ajaydsouza.com/wordpress/plugins/better-search/bsearch-templates for use of custom templates and template tags supported by Better Search
Additionally, I have included a simple template for WordPress Twenty Eleven theme that you can simply drop into the twentyeleven folder
Yes I can. However, there are no guarantee on the time frame for the same. Additionally, if I am unable to access the theme for testing, e.g. with paid premium themes, I won't be able to create this template.
If you have already created a template that you would like to share with the WordPress Community, you can contact me and I will add it into the package.
Fixed: "Missing argument" error for heatmaps
better-search-template.php in your themes folder.