Hi,
i created a small menu to get RCT3 plus both addons on one dvd...
download the file
http://rapidshare.com/files/30191972/rct3menu.rar.html
put the cd content from main game in the folder \orig
put the cd content from soaked in \soak
put the cd content from wild in \wild
put crack, keygen, patch etc in \crak
installation is like this order - rct3, soaked, wild, of course you should put the newest wild update and according crack on the disc