I'm about to pull my hair out waiting for the release of SF2:NA, and I thought that in the meanwhile I'd buy RS.

The problem is, even after scanning the forum here I can't figure out whether I can actually run it. I have SF2, but it's evidently too current an iteration to work properly with RS (the web_setup file is the May 2011 version and my merged version of the series is currently patched up to date). I also have earlier web-setup versions of SF2V (May 2009) and SF2E (June 2009) and SF2I (Nov 2009). If I installed one of them separately and didn't update it beyond February of 2010, would RS work with it? Or does RS require SF2 itself, rather than one of its variants (such as Vietnam or Europe or Israel)?

I'm running a Vista 64 system.

Thanks in advance for the help.

DKM