You must be sure to install the ProDistance Mod into the same folder as your main Links 2003 installation. If installed correctly, you will be able to play either the "regular" version of 1.07 (accepted by LSPN) or the ProDistance mod version of 1.07 (which appears as 2.02, and is not accepted by LSPN). If you want to use the ProDistance Mod, you really must fully read and follow the directions at the link mentioned by Mississippi:
http://linksassistant.no-ip.info/prodistance.htmPlease note there was a also a ProDistance mod for Links 2003 v1.05 (I believe, which appeared in the game as v2.01) - but I don't believe it's available for public download any longer. I do have a copy, in case someone who has no interest/desire/need for v1.07. Make sure you are using the correct ProDistance Mod for your installed version of the game.