Thanks gang.
The fuselage side insulation is a decal that I made from NASA's Shuttle Operational Database. At one time NASA had on their website some very nice PDF diagrams that indicated tile placement on the orbiters. What was neat about them was that they became scalable vector based art if imported into Corel Draw. So I scaled them down to 1/144, manipulated them a little to fit the Revell fuselage, thinned the lines out, editied out the lettering, and made them a light grey. The image was then printed onto 8x10 clear decal stock.
The tail was done in the same fashion.
The nose tiles, OMS pods tiling, fuselage hatch, and stargazer port were from the M.A.R.S. paper shuttle model in 1/100th scale. Once again the PDF artwork was imported into Corel Draw and edited to fit. This was printed on decal sheet. The tiles just aft of the RCC on the wing's leading edge were done the same way.
I think I went through a 55 gallon drum of Walther's Solvaset to get the decals to snuggle down but they went down with nary a wrinkle. This was the first time making my own decals. The remainder of the markings were commercially available aftermarket. Detail close ups to follow.
PS...I went looking for the tile diagrams in the NASA SODb website and they are no longer there. I have the artwork for Discovery, Endeavour, and Atlantis but didn't download the PDF's for Columbia and Challenger. If anyone has those I'd love a copy of them.