Will nav4all work on my mio 168?

My girlfriend downloaded a free navigation software from www.nav4all.com last month, she used it while travelling to Italy, she told me its quite nice and I want to have a try on my mio 168, I downloaded the software from their website but then I cannot install it, i tried a bit googling and found out that nav4all only support certain types of pda. Are there anyone ever used nav4all on their pdas?
Any help?

Just had a look and it says Nav4All mobile phone navigation.