Can the software download be used in an emulator such as Vice instead of requiring real hardware and EasyFlash?
Yes, it works perfectly on VICE. In fact I use VICE primarily for testing.
Is it only Easyflash and no d64 files please?
It's EasyFlash cartridge image only, as the game just wouldn't work on disk.
Would not work on disk because? I am thinking of the "Sparkle 2" IRQ-loader solution by Sparta/GP. I presume that would have worked?
Works wonderfully as cartridge, as Sarah intended I guess.