1/7
Level 2: Old tunnels
http://i44.tinypic.com/r9kgmo.jpg
Press the button, walk back to the previous "open" area (near the door) and look around.

2/7
Level 3: Pillars of Light
http://i40.tinypic.com/dwoodj.jpg
Press the button, go down the stairs, open the door, kill the slimes and find the treasure on the ground

My lone trophy needs a friend! Surely someone knows some locations

Sure do, 7 so far... but I didn't take screenshots. How did you take yours?

Using fraps

How did you reach the 3-tiles area in the upper left area - the three tiles that aren't connected to the rest of the dungeon

Fell into a pit on level 1.