u have problem in scripts possible console dont load it. u can too have change in gameserver/config seetings propeties this line for True u must change it for False and make server restart look it and test when problem dont solved write here.
# Don't load quests
AltDevNoQuests = False
i never have this problem in my gameserver console i think java say, u have out memory u need free space 1024000 bytes u must check again your memory. if i write wrong someone else can help you who meet with this problem.
rates u can change here
gameserver --> config --> rates.propeties if u dont want make all mobs same xp/sp u can change it manual target mob shift + left click mouse later choose edit npc and change for your xp/sp moobs ;)
added custom items to client u find in guide written by devangell
http://www.maxcheaters.com/forum/index.php?topic=113521.0
u cant use eclipse? and download clean l2jserver pack ?
easy and fast ;)
here have guide how to compile and get clean server pack
http://www.maxcheaters.com/forum/index.php?topic=81843.0
have it i think u want this guides.
http://www.maxcheaters.com/forum/index.php?topic=50068.0
http://www.maxcheaters.com/forum/index.php?topic=92146.0
btw use search next time u can find all what u need trust me.