Instance help with MaNGOS 2.0.10

Hey all.

How can i edit items ? You see me and some friends want to make Molten Core,Blakc wing Lair, Onyxia much harder and that the bosses drop tier 4 and 5. Anyone know how to do this? ( i want to do this since Outland isnt spawned ) Or if somone know how to get outland spawned thats even better :)

Hope i get a answer:) BTW im using Navicat

Hellfire+outland spawn is here
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so enjoy =]

Is that all of outland:P or just some parts??, because hellfire and kharazhan is alredy spawned:P And how do i make it work, the file oyu linked me, btw Thank you :)

thx allot