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Thanks! If you encounter any problems, please let me know!

This is the brick wall I'm hitting

Yeah, when making, those were the problems I had too.
For the issue you have, it's an easy fix (I hope)
Download this have I have from here :
https://www.dropbox.com/s/7oi30wf5dicdhcb/application.hpp?dl=0
Then locate your steemit folders, find the one with 'apps' in it, then drag the file into the folder. This should fix the problem.

Thanks, I will try. Man, this is almost like support. Have you experienced any profit from any of this? :)

No, and I don't intend to experience any profit from support. :)