The forum has been revamped to reduce redundancy. creations is for anything created that relates to FlashPunk. If a code snippet was created, it would be a good idea to reply as a new topic in tutorials to include a brief tutorial of how to use the snippet.
Take a look at the category definition for tutorials and creations for more clarity.
Okay! Ima delete my comment now as it doesn’t really pertain to helping migrate, and I don’t want to clutter up the page! 
I forked the gh-pages repo to do some more work on the old tutorials. I’m a little new to using source control for web content, so can I just upload images into the folder that the markdown files are? Is there anything special I need to know before submitting a pull request?
If you look at the first tutorial, you’ll see I put all the images in the /assets folder. You can just put them in there, and take a look at that tutorial for the liquid markkup tags.