OK my mistake, i manged to run it propertly, i just need to download maps to see if gps is working alright too
For anyone else using mio p350 with no knowledge like me. These are the steps i did:
1.Download from the link nabi provided.
2. Minimized full program, following instructions from the link
3. Unziped 320_240 folder from data.zip and saved it in the ui_igo8 folder
4. Modified sys.txt:
[interface]
resolution_dir="320_240"
[rawdisplay]
highres=0
screen_x=320
screen_y=240
class="landscape"
Saved everything to my sd card and run it. that's it!