Halo 2 new map packs

Can anyone tell me where to find the new map backs on my xbox HDD( i have unleash X dash)? I know how to ftp, mod and so on, so i just need to find out where the new maps are. Ive modded the old ones but i'd like to start on warlock cause i hate that map so much hehe.

 

E:/TDATA/4....64/$c/check all 3 folders!

 

thanks alot man, i woulda spent forever lookign through every file in my HDD.