I eventually just bought the downloadable version of Rising Sun. At that point, the only available option was the XP version for SF1, but the support person I emailed (which may have been you, now that I think about it) said that they were working on a Win7 version (which I assume will also work for Vista), and that I could get a copy of that when it became available. So it looks like I will be able to run some version of it eventually.