waldorf a1 in cubase 5

HELP! I want to use the a1 in cubase 5. I went from Cubase SX 2.0 to Cubase 5 and my old a1 midi parts are unmapped. I have heard that it is possible to grab a .dll file of the a1 from cubase 3 and place it in Cubase 5’s plugin folder. I can’t find the .dll file in Cubase SX 2.0 and I can’t find the plugin folder in Cubase 5. If anyone has the file or can otherwise help it would be soopa greatly appreciated!