Firstly, Well done! for creating an excellent plugin.
I want to know how I can set up like your demo…
What template you used, etc. Do you have a walkthrough/Jumpstart to create a website looking like your demo?
Thank you! For starters I would recommend checking the new documentation I’m releasing today, it’s got lot’s of things covered: Ajax Search Pro Documentation
Also, if you mean the first example on the demo page, then you are looking for the two column search layout: Knowledge base – Two column search setup
The theme is also included, you can select it on the Theme Options panel, it’s the “Demo – Home Isotopic” theme.