You'll be able to enter the panel
and choose the type of account you prefer.
You can use the free account or, if you don't want the sponsored links inside your search page you can choose a pay account.
After choosing the freefind account
you can adjust its settings, click on"Build index" after the
indexing operations is over click on "HTML" and follow the given instructions.
When given the free code you'll be able to insert it in one of your pages, remember to insert it in the source
code as described in the Source code