Do I have to download the icon and alert files separately or are they included in the POI packages? I am new to this and when I try to enable the alerts on my GPS, it doesn't allow it. I am wondering if I am missing something. Anyone have ideas/help?

try here
http://www.poi-factory.com/node/25721
Freedom is not the right to do what we want, but what we ought. - A. Lincoln
And
And yes, normally the mp3 or wav sound file and the bmp icon file would need to be downloaded separately.
Nuvi 350, 780, 1695, 3970T and TomTom 540s