ayuda, como poner y activar script

pues toy siguiendo una guia y me dice que tengo que poner y activar el siguiente script:

como lo hago? gracias^^

Script------>
//===== eAthena Script =======================================
//= Homunculus Breeder NPCs
//===== By: ==================================================
//= Shadow
//===== Current Version: =====================================
//= 2.0
//===== Compatible With: =====================================
//= Any eAthena Version;
//===== Description: =========================================
//= Uses custom pets as homunculus. There is 16 different ones.
//= Skills arent working yet
//===== Additional Comments: =================================
//
//============================================================
// Variable notes:
//
// homunculus : define what egg you got, so the skill/stats reseter wont take more than 1 egg
//============================================================
// Tool Shop
// Removed Philosopher's Stone 'til someone fix the shop scripts
alde_alche.gat,22,16,5   shop   Patricia   744,537:-1,910:-1,911:-1,912:-1

// Breeder
alde_alche.gat,26,9,5 script Jack 748,{
   set @zeny,50000;
   mes "[Jack]";
   mes "Hi, I am the Homunculus Breeder.";
   mes "Do you want to have a Homunculus?";
   next;
   menu "Sure!",L_yes,"No",L_leave,"Buy a Philosofer's Stone",L_PStone,"Homu.. What?",L_description;

L_PStone:
   mes "[Jack]";
   mes "It will cost you 100.000 Zeny, ok?";
   next;
   menu "Yes",-,"No, thanks",L_leave;
   if(Zeny < 100000) goto L_NeedZeny;
   getitem 12040,1;
   set Zeny,Zeny - 100000;
   mes "[Jack]";
   mes "Thank you, have a nice day";
   close;

L_leave:
   mes "[Jack]";
   mes "Good Bye Then!";
   close;

L_description:
   mes "[Jack]";
   mes "A Homunculus is a Beast what only an Alchemist or a Creator can Have.";
   mes "I hatch them for Alchemists what are starting.";
   mes "They are an artificial life forms with great power.";
   next;
   mes "[Jack]";
   mes "You can make your Homunculus more stronger, using the Philosopher's Stone.";
   next;
   mes "Do you want to have a Homunculus now?";
   next;
   menu "Sure!",L_yes,"No",L_leave,"Homu.. What?",-;
   mes "...";
   mes "Have a nice day...";
   close;

L_yes:
   if((Class != 18)&&(Class != 4019)) goto L_NotAlche;
   if((homunculus>0)&&(countitem(9030)!=1)&&(countitem(9031)!=1)&&(countitem(9032)!=1)&&(countitem(9033)!=1)&&(countitem(9034)!=1)&&(countitem(9035)!=1)&&(countitem(9036)!=1)&&(countitem(9037)!=1)&&(countitem(9038)!=1)&&(countitem(9039)!=1)&&(countitem(9040)!=1)&&(countitem(9041)!=1)&&(countitem(9042)!=1)&&(countitem(9043)!=1)&&(countitem(9044)!=1)&&(countitem(9045)!=1)) goto L_NeedHomun;
   mes "[Jack]";
   mes "Ok, choose a type of Homunuculus.";
   mes "You need to pick the weakest ones first, before you can have a stronger one.";
   mes "This will give you some experience of how to control and live with such wonderful creatures.";
   next;
   menu "I want a weak Homunculus",-,"I want a stronger Homunculus!!! Form",L_Strong,"I think what it's dangerous...",L_leave;
   mes "[Jack]";
   mes "You need to get all the Homunculus skills before I can give you a Embryo";
   mes "And you have to pay "+@zeny+" to get the stronger Embryo.";
   next;
   if(getskilllv(238)<1 || getskilllv(243)<1 || getskilllv(244)<1 || getskilllv(247)<5) goto L_noskills;
   if(Zeny < @zeny) goto L_NeedZeny;
   set Zeny, Zeny - @zeny;
   delitem(9030),1; delitem(9031),1; delitem(9032),1; delitem(9033),1; delitem(9034),1; delitem(9035),1; delitem(9036),1; delitem(9037),1; // Not developed Embryos
   delitem(9038),1; delitem(9039),1; delitem(9040),1; delitem(9041),1; delitem(9042),1; delitem(9043),1; delitem(9044),1; delitem(9045),1; // Developed Embryos
   set @getegg,rand(1,8);
   if(@getegg == 1) makepet 1950; // Lif
   if(@getegg == 2) makepet 1951; // Amistr
   if(@getegg == 3) makepet 1952; // Filir
   if(@getegg == 4) makepet 1953; // Vanilmirth
   if(@getegg == 5) makepet 1954; // Lif H
   if(@getegg == 6) makepet 1955; // Amistr H
   if(@getegg == 7) makepet 1956; // Filir H
   if(@getegg == 8) makepet 1957; // Vanilmirth H
   set development,0;
   set homunculus,1;
   mes "[Jack]";
   mes "Here is your Homunculus. Take care of it...";
   close;

L_Strong:
   if(homunculus==0) goto L_Weak;
   if(readparam(55)<50) goto L_JobLvl;
   mes "[Jack]";
   mes "You need to get all Homunculus skills before I can give you a stronger Embryo ";
   mes "And you have to pay "+@zeny+" to get the Embryo and also you need a Philosopher's Stone.";
   next;
   if(getskilllv(238)<1 || getskilllv(243)<1 || getskilllv(244)<1 || getskilllv(247)<5) goto L_noskills;
   if (development>0) goto L_Developed;
   if(countitem(12040)<1) goto L_NeedStone;
   if(Zeny < @zeny) goto L_NeedZeny;
   set Zeny, Zeny - @zeny;
   if(countitem(9030)==1) makepet 1958; // Developed Lif
   if(countitem(9031)==1) makepet 1959; // Developed Amistr
   if(countitem(9032)==1) makepet 1960; // Developed Filir
   if(countitem(9033)==1) makepet 1961; // Developed Vanilmirth
   if(countitem(9034)==1) makepet 1962; // Developed Lif H
   if(countitem(9035)==1) makepet 1963; // Developed Amistr H
   if(countitem(9036)==1) makepet 1964; // Developed Filir H
   if(countitem(9037)==1) makepet 1965; // Developed Vanilmirth H
   delitem(9030),1; delitem(9031),1; delitem(9032),1; delitem(9033),1; delitem(9034),1; delitem(9035),1; delitem(9036),1; delitem(9037),1; // Not developed Embryos
   delitem(12040),1; // Philosopher's Stone
   set development,1;
   mes "[Jack]";
   mes "Here is your Stronger Homunculus. Take care of it...";
   close;

L_noskills:
   mes "[Jack]";
   mes "You need to have the following skill: Basis of Life (Lv 1),Peaceful Rest (Lv 1), Call Homunculus(Lv 1) and Ressurrect Homunculus(Lv 5) to get a Homunculus.";
   mes "Good Bye!";
   close;
L_Weak:
   mes "[Jack]";
   mes "Sorry, but you need a non-developed homunculus...";
   close;
L_NeedZeny:
   mes "[Jack]";
   mes "Sorry, but you don't have enough zeny...";
   close;
L_Developed:
   mes "[Jack]";
   mes "Sorry, but your Homunculus is already Developed, you need to get a non-developed Embryo if you want to change your Homunculus.";
   close;
L_JobLvl:
   mes "[Jack]";
   mes "Sorry, but you need to be at least Job lv 50 to Develop your Homunculus.";
   close;
L_NeedStone:
   mes "[Jack]";
   mes "Sorry, but you need a Philosopher's stone to Develop your Homunculus.";
   close;
L_NeedHomun:
   mes "[Jack]";
   mes "Please give me the other Embryo if you want a Stronger Homunculus.";
   close;
L_NotAlche:
   mes "[Jack]";
   mes "Only Alchemists and Creators have the knowledge to give birth to these Life Forms.";
   mes "Good Bye";
   close;
}