When you say you had 2 going were there 2 seperate browser windows running the import script? The extra users are definitely from the duplicate running as it would duplicate quite a bit of data, but the only way I can see how this would be possible is if a new window was opened and somehow started again.
The Newest Member box showing 1 could be a cache issue. Go ahead and try clearing your cache in the control panel and see if that fixes it.
