Trouble importing download spells

There are a lot of great spells up for download here, and there's a few I want to use

For one, I want to use Goblin Air Strike for a game I'm making... but I can't seem to import it right. I imported the models, the abilities, the trigger, and all that. I put the airfield in and it has the ability, but it does nothing when I use it :-\

I'd really like to use this so I need help :(

sometimes, actually always, when you import trigger and ability,
the trigger still refering to the ability in the other map.. it doesn't recognize
the ability you imported, so you need to specify that it's that exact ability
in your trigger

how would I do this?

in the trigger...
it may check the casting the spell with order string or most probably, why it doesn't work for you, it specifically checks what spell it is.. maybe in conditional statement , just change old ability with new one

event: unit casting ability

condition: the casting ability is "bladestorm" equals true

well, the fact is, that bladestorm is from the old map, and you need to replace it with the new one in your map, but it's easy if it's gui triggers, in
jass you gotta find the integer value of your ability.. it's like 4 chars long

About that...
the four characters... when you make a copy of an ability it adds four more... what do I do with those when I want to make the tooltips and stuff reference it instead of the old one, and, for jass spells what do I put in instead of the four chars for the original spell?