A big newbie

Hello guys i am dominique from belgium i drive a peugeot 307cc 2008. last week i bought myselve a gps system from someone else.

this system:



now ive installed the entire system only it needs to be updated how will i do this? Its a tom tom navi... see next picture



also i dont have a gps signal... i mounted the antenna into its place whent to drive with the car but no signal i even put the antenna outside the car... wich antenna do i have?





and if its this one what do i hqve to do with the next two pictures





and this is the screen where it says waiting for a usefull gps signal




thx for all the help i really dont know how to begin