Your graphics will need to be handled in whatever app you drew them with. You don't get a lot of options for handling anti-aliasing, etc... you can do pixel art style stuff, but outside of that, you need to make sure you are drawing each frame the way you want it before you bring it in.
Also, saying, I still don't get it and I didn't finish the tutorials that were suggested because I am assuming they won't help doesn't really get you very far.
You won't get anywhere without putting in the work, experiment, do more tutorials, read the manual, etc...
You're changing the words there. I said I'll leave it for another time to do, because I'm not using Construct 2 24/7 am I?
And I did set the anti-aliasing to x16 in Blender, so as I said... the images are ALREADY anti-aliased (sorry for the caps), but when the player is moving while you're playing the game the anti-aliasing turns off.
You can see for yourself here:
mediafire.com
When you open the preview of the player sprite, the edges are smooth in every single frame for every animation.