2. Does anyone recognise or have a clean picture of this decal. It was at the bottom of the seat tube by the cranks.
I may be wrong but assuming this is on the rear of the seat tube it's not a GT sticker (might be the dealer who supplied it).
you are wrong
(not to sound like a smartass)
its the decal that says Made is USA and 6061 T6 Alloy. (or to that effect). mtbdave has one on his 93 RTS1, i am sure he could take a good close up picture of it, if you ask him
http://i1090.photobucket.com/albums/i37 ... /001-6.jpg
tips for putting decals on? well find a catalogue image of the original, so you get them in exactly the right spot.
hold them in place with masking tape, stand back and look at it for a while, have a cuppa then look at it again. look at the catalogue, then look at your bike again. have another cuppa. once you are certain they are right, then mark with a felt pen or similar, alignment marks at each end of the top covering application papers and onto the frame. take decal off frame carefully and slowly remove backing papers, i find folding it over itself and carefully rolling back the best way.
Wipe the area of frame with a microfibre or lint free cloth and acetone.
hold the decal stretched tight. align one end of your mark with the mark on the frame and lightly stick the corner. then hold tight and in line with your other mark.
once you are confident, take a deep breath, pull the decal tight and adhere it to the frame starting at the already stuck end, and gently smooth it down all the way to the other end.
go over the application strip with a rag to really push the decal down hard. leave it for half an hour the slowly peel the application tape off, in the same manner as described above for the backing tape.