Phew - finished!
Annoyed at myself that I didn't see here about finding all the pieces before unlocking the boat on Ch4, but that's life eh.
I also didn't figure out how to make the lamp that appears on the CCTV to look like a compass interact with the machine upstairs on that level.
Anyway - a few screen-shots now follow that may help on some puzzles. I'm "lucky" enough to use Steam so the screen-shots were easy to take

The folder as a whole is here, and contains spoilers. They were also accessed as minigames on the grid that is available after you complete, rather than in the process of completing the game.
http://elgordo78.imgur.com/tiny_bang_storyFirst up - the fishing floater jigsaw puzzle. It's been said there is a randomness to it, but mine matches a previous one here exactly. I also noticed that the hint is not crystal clear all the way but is essentially a mirror image of the actual puzzle, so if people don't want to see the solved puzzle, start with that. It'll only take you halfway but it's a start.
Hint image:
http://elgordo78.imgur.com/kIPwG.jpgSolved puzzle:
http://elgordo78.imgur.com/Nx8nx.jpgAn earlier puzzle (chapter 2?) for which you collect the little red stopcock valve-tops that look like cartoon beeny-hat propellers... and you then rotate the pieces.
Solved puzzle:
http://elgordo78.imgur.com/qtiKi.jpgChapter 3, colour-chart puzzle solved. Well, 1 step away on the green, with the bottom 2 needing to be switched (it fades too fast to a success picture to take it of the actual puzzle completed).
http://i.imgur.com/yq7j4.jpgChapter 4, boat-pin puzzle. I'm not sure it's different every time - might just be different per game/install, because mine is the same each time.
Here is mine, solved:
http://elgordo78.imgur.com/87fA5.jpgChapter 4, baggage puzzle - solved:
http://elgordo78.imgur.com/1smdR.jpgChapter 5, secure-safe combination lock, solution - this may differ for you, depends on... (see spoiler further up

) - let us know?:
http://elgordo78.imgur.com/zckV2.jpgChapter 5, pipes puzzle. I admit I followed an earlier solution in this thread how to solve it (see here, directly copied -
http://elgordo78.imgur.com/aWPIs.jpg) but it appears the selection of size of valve-wheel onto valve-point doesn't matter, just their positions. See here for confirmation -
http://elgordo78.imgur.com/soptY.jpg ... For those not wanting to look at images and spoilers, wanting to solve it themselves but in need of a clue - look here (in case it's still classed as a spoiler!):
From what I can tell tracing back, the aim is to make it so that the flow of blue fluid hidden in the pipes cannot make it to either of the two exits on the right.
If anyone is compiling a full walkthrough and wants screen-shots of every screen in default untouched mode I'm prepared to blank the game and begin again, and do that... Then perhaps someone can doodle little arrows on to point at things as necessary