I have installed Garmin Streetpilot 2.2.10 I read ALL the thread and I can't add gpi files. So my precious POIs can't be used.

I add a POI folder with .gpi files in:
/var/mobile/Applications/(many digits and numbers)/garmin-nav.app/storage-usa/
and
/var/mobile/Applications/(many digits and numbers)/garmin-nav.app/storage-usa/.System
and
/var/mobile/aplicatioons/(many digits and numbers)/library/sdcard/
and
/var/mobile/aplicatioons/(many digits and numbers)/library/sdcard/garmin/

I also gave to POI folders and gpi files these permitions:
Owner : mobile
Group : mobile
User : read write execute
Group : read execute
World : read execute

All these POIs are working OK in my old windows mobile with Garmin Mobile XT, are there any ideas about what's wrong in my iPhone?