well...if you dont mind...next time you can use search engine search 1st..
this question has been asked and answered several times...
uncomment the following line...
https://rathena.svn.sourceforge.net/svnroot/rathena/trunk/src/config/renewal.h
/// game renewal server mode
/// (disable by commenting the line)
///
/// leave this line to enable renewal specific support such as renewal formulas
#define RENEWAL
if you dont want to update to latest svn..
just search inside your npc folder..
and get the path where those eden file is located..
and enable the server to load the npc upon startup...