Bought car for the first time. Got no idea how to work on it

Hey guys , just picked up this 2000 civic SE. for some reason I can’t find much info at all on it online . I’m looking at parts like a lip kit – side skirts – wheels – rims and the only thing that come up is the SI . I have the SE. are they the same size ? Will SI parts fit ? Sorry for the noob questions. New to all this