when I try to run tomtom navigator.exe on my PNA, it says 'cannot find tomtom naviator (or one of its components). Make Sure the path and filename are correct and that all the requred libraries are available'

I unzip TT7 @ root directory (\MyFlashDisk\)
and all the maps @ \My FlashDisk\My Documents

So I try the other way to work it out.
I download the .cab files for TT7 and try to install it on my PNA. but It freezes

any idea about it?