SurClaro Flight Simulator Resources

greetings and salutations fellow simmers....
so i went ahead and downloaded some airships from the download archive....and all fly wonderful under my command..but when i put then under ai control...well...someboddys drinkin at the helm......lol...i used AFCAD to put a large landing place for them..(as zepplins are quite large)....i used a heavy gate..(although you and i know they are lighter than air)...but they dont land at the designated airport....nor do they do all the nice things A/C do when we tell them...IE..taxi..park at gate...ect...what pray tell am i doing wrong....please help....i know that A/C wont go to a specific gate...but at least they should land....right?....
all help is appreciated....and have a good day of flying...
Specter