Images linking to PC rather than to site

I recently dl'd the free essential version before committing to the full version (I used NOF 4.0 a million years ago and remembered how user friendly it was, so I thought I'd check it out)
The preview looks good but the published version shows none of my images and when I "inspect" i can see that the links are showing to folders in my PC rather than to uploaded images on my site.
How do I correct this? Any help is appreciated.
DJM
www.knucklesupperstudios.com