In looking at the Art of Star Wars book (Episode I), I don't see any indication of landing skids, but being the big fan of all these movies that I am, I know that there were skids on the Naboo fighters. In fact all of the Naboo craft had pointed landing skids. My recollection from the movies is that there were a pair of skids located on either side of the cockpit, and I believe you are correct regarding the smaller skid in the back.
Check out the opening of Episode II when the bomb explodes on the landing platform on Coruscant. You can definitely see the skids on some of the shots of the escort fighters.