very new user

Hi,
I dowloaded and installed the app on my samsung U600 without difficulty. And now ? Must I do something else than open it to work with ? Must I configure settings or let default config ? Because all seems dead : position stay in 00000000 and compass is like a wallpaper... I still did'nt try to download maps.
Sorry for this very basic question.
And many thanks anyway.

gps

you need a common bluetooth gps receiver. it can be later used with other applications too.