Perhaps there could be a sticky thread that keeps track of what the newest version of some of the more popular modules are?
Or is that listed somewhere else and I didn't see it?
If I had the time they would be in the downloads section...but I have no time. :( Sites like SFO will give you all the versions so the highest number is normally the latest version. Normally because mzscript went back in time more than once. :)
http://www.ls-themes.org/modlist.php?html&full . For modules with a clean version system it works fine (for all xmodules) but for some other modules it doesn't always report the latest version. ..