Yeah, the x86 emulator probably doesn't support the APIs required for such programs; they're pretty obscure and surely weren't the dev's first priority. I really, really wish that tool's source code would be released so people could continue working on it...
Since you're on 8.0 (and already jailbroken, even) the question becomes "what open-source undelete utilities for Windows are available?" Typing "open source file undelete" into Bing gives http://kickassundelete.sourceforge.net/
as the first hit. What's more, it's entirely written in C#, as far as I can tell, even supports Mono. It might not even need to be recompiled and should be trivial to recompile if needed.
Obligatory reminder: Don't use the tablet (any more than absolutely necessary) until you have a chance to run the undelete tool. There's a pretty fair chance of the data getting overwritten, or even just getting TRIMmed out of the SSD, if you do so.