Suggestions on Replacement Window

Last year I had two windows that needed repair the passenger window near the door top glass had water in it and the window in the living area galley side . I bought David Root's repair kit, http://www.daverootrvglassrepair.com since I was not near his repair shop in Oregon. In order to get the correct glass spacer you have to measure the thickness of the two panes of glass. The kit had window spacing, window cleaner, flat blades gloves, scuff pads, sealant. Everything needed except for cordless drill, and the suggested cordless caulking gun (definitely needed to apply the thicker sealant). I don't know if here is a right place to tell you the steps. All windows that I have repaired to date total of 4 have remained sealed...I bought the three window kit