I'm the one who wrote the instructions you linked to and let me just say I can download DRM'd videos from my home feed, but as of today I can't download from messages (whereas that worked yesterday).
And before anyone asks me for tech support again, let me say the extent of my ytsaver knowledge is just that tutorial I wrote. I took the files from the following post and just tinkered in ways that seemed intuitive and it worked. I wrote the tutorial to share the love and in hopes that if I fucked up, someone would come call me a dumbass and write a better tutorial.
I'm the most vocal idiot who figured that crack out, not an expert in ytsaver or apps or cracks or whatever else.