Fixed a bug reported here. This was a pretty major bug affecting scheduled posts that are a part of a series, let me know if you have any problems with it!
UPDATE (12/6/08): Just a heads up that the link above downloads from the trunk of the Organize Series subversion repository so you will get the bleeding edge version of Organize Series (currently at 2.0.8beta4). I’m not going to be responding to bugs listed here as frequently (unless I can reproduce easily…so make sure your report is as thorough as possible) because I’m ramping up to get a release ready for when WordPress 2.7 is released this week. OrgSeries 2.0.8beta4 currently WORKS with WordPress 2.7 RC1