Hi EIF
In JA Good, it loads the 'nav-search' module position in the header block and assign the search module to this position + style for it.
JA Good is built with T3 framework while JA Resort is based on new T4 framework, it's so different from T3, you will need to customize much in layout + style to have the same nav search.
If you're not familiar with code, I suggest you to hire a developer to get it done for you.
Regards