@Americanlifes... the last line of host file should be like this:
127.0.0.1 gold.garmin.com

Now, all the files you copy to your phone, .img and .plst, after you copy and replace them, you need to open those files in IFILE go to var/mobile/applications, find the garmin app and set the permissions for those files: Owner: mobile, Group: mobile , user: read, write, execute, group: read, execute, world: read execute

Follow Tonytone instructions on page 44, and set the permissions and that should work.