The FreeBASIC.rsc folder should be copied into your project's folder - or your AppData/Local folder in Windows resp. /usr/share in Linux. If already existing, ensure that you don't replace newer files with older ones, especially not to erase files/subfolders. This also applies to the project's distribution.

You have to put the .bi files in this directory directly in your sourcecode folder. This release is just transitional, creating library files for linking is complicated.