SEIV and Linux (via Wine) Woes

I am attempting to run SEIV on Linux through Wine, a program that allows one to run Windows games on Linux machines.

The demo worked great, but I purchased the registered version via Strategy First yesterday and the game won't run because the Internet-based registration system doesn't work.

Whenever I try to run the game (se4.exe) I get an error saying "error while unpacking program, code C. Please report to author."

I attempted to get around this problem by booting into Windows and installing it there. I did this without incident (i.e., the Internet-based registration worked seamlessly) and then copied the Windows game directory over to Linux and attempted to run it. This didn't work either.

Does anyone know if there is a way to register the game that doesn't require the Internet? I really want to play this game but use Linux as my primary OS. I can supply my proof of purchase to prove that I'm not a pirate.