Hi,
The two plugins are sepearte, in this case you only need to have the Pro version installed.
Here is a really quick tutorial on how to one-click import from the lite version.
The main difference is that while in the Lite version you only had a single configuration page, in he Pro you can make as many search bars as you want, so first one has to be created by importing from the lite version. In the video above I explain it in more details.
If you need any help with the setup just let me know. I recommend checking some of the video guides too.