i have been using FS 2002 with pai planes involved. i just installed frontier but the atc never uses its name during transmission. i went through the edit voicepack thing twice and still no luck.is there a place i could go to find call signs for airlines?

Try this site:http://www.planespotting.nl/codes2.html

I thought that "Frontier Flight" was in default list...?

yep.first, i spelled it wrong in the cgf file then i only used frontier and left out the "air" part.