I have no trouble loading save files. However, whenever I hit the "Custom Scenario" Button, with a party loaded (because of course it won't work without a party loaded) it tells me that there are no scenario filed in "Blades of Exile Scenarios Folder". I never saw "Blades.ini", I just unzipped it from the rar. file. "Load Scenario", of course, just takes me to Valley of Dying Things. I can only wish for a file dialog.
I keep getting more and more interested in playing BoE scenarios, but it seems as if they just keep getting farther away.