I am experiencing the same problem as many of you (TSUPERB and FAHMYZONE), in that I am not able to get my thumbnails to show up on my Graphpaper Press Fulscreen theme.
I uploaded the theme, activated it, and followed the instructions manual contained within the site files.
Things I have attempted to do in order to solve the problem:
-changed permissions to 777 in my cache folder inside of wp-content/themes/fullscreen.
-Changed permissions in the entire fulscreen folder to 777
-Attempted using a thumbnail regenerating plugin
Nothing has worked thus far! I have been trying for several days, but I can't seem to get it to work. I can poke around in the CSS if I am directed where to go, but right now I know very little about it.
Can anyone who is savvy (ESMI, TSUPERB) help me out?
Ultimately I would like to create a portfolio site like these:
http://www.mbradyclark.com/ (Permanent links for the thumbnails)
Here is a link to my site: http://britthultgren.org/
Thank you so much for the help!