Ok, so by pulling your VIN# you should have the old style 01/04 like you said. It narrows down to needing the following parts to replace what you car should have. Which unless you have a drive to just replace parts with a newer design, the 1st design should work flawlessly, the difference is negligible. Full aftermarket tranny cooler with bigger S/S Braided lines would be the only beneficial change to the current setup.

OEM Replacements are as follows:
Connectors on Tranny
#24236555 (3/8 x 18 NPS) Long - 13.80
#24233366 (1/4 x 18 NPS) Short - 16.50
Hoses
#20793004 Inlet - 46.05
#20793005 Outlet - 44.91
Connector on Radiator
#52481097 (x2) - 25.35ea


If you want to replace everything for the 2nd design, you would need to replace everything from the fittings on the tranny to the radiator, but again, the difference is negligible, so If it were me I wouldn't bother, just replace the parts with the OEM Replacements if it is leaking and put money into more power adders.