I'm running Statpress Reloaded 1.5.21.
Every second link that appears on the Statpress stats page under the "Page" column is "ver=2.50". That's it, nothing else.
None of my plugins are version 2.50. My WordPress is not version 2.50. I have no idea where this number is coming from, or what it means. All I know is that it's annoying and takes up space in my stats page.
The timestamp is always only a few seconds after the previous real link that is displayed.