HI! (Im sorry im a newbie to Vox and ereaders

I was trying to transfer some aps and book i downloaded on my pc to my vox, but i cant see them on the vox. Should i place them in a specific folder? I created a new folder on the vox, but i cant see it in the vox window when on the pc.
I will get Astro File Manager later today, will i be able to make transfers with that?