To second Scott's advice, please go find a formation clinic nearby (or not-so-nearby) and spend a day learning. It's an amazing amount of fun, and all of this will be answered.
In brief, how you land will depend on a number of things, but most importantly, on what you decided you would do before you left the ground. Other factors are the width of the runway, the length of the runway, and the experience level of the pilots involved.
Our local procedure is to land on the centerline with a two second spacing, and then move to the exit side of the runway as soon as you're established on the ground. This is common when the expected exit point is part-way along a runway.
As for radio calls, at a controlled airport generally only lead talks to the controller, even after your break for landing. At uncontrolled airports, until the break only lead talks, after the break each plane calls position (#2 base, #2 final). Again, that's our local procedure, I don't recall if it matches the TeamRV syllabus.
For more information, look into one of these organizations and try to find a group to fly with near you... There's great reading material on both the FAST and TeamRV sites, but all the reading in the world is no substitute for hands-on training with someone who knows what they're doing.
FAST - Formation And Safety Team (check out "Documents")
TeamRV - Team RV formation documents
Red Star - Red Star Pilots Association - oriented towards Yaks and Nanchangs, but Nanchangs and RV's fly formation quite well together.
SFC - Swift Formation Committee - Swifts also fly formation with RV's quite well, if they have larger engines or if the RV's throttle back a tad.