There seems to be a couple flaws in your directions. When I click on "My Themes" there isn't a "Exported" option only "Favorites" and "Downloaded." I also did not have any of the other folders besides the MyColorScreen, and yes I do realize that they're suppose to be inside of that folder.

If it's truly a HTPC is shouldn't be more than $500 and ssd isn't needed its just nice to have one