outdated server allways shows 1.3

I have a few servers and I some of them are in 1.2.5 because of plugins and others in 1.3. there is also a farlands server wich runs on 1.7.3 but the server list allways shows outdated server 1.3. I play on these servers for fun so I have the jars of those versions and it would be nice to see if they have updated or not by simply looking at the version.

what I expected to happen: it would say outdated 1.2.5 or outdated 1.7.3

what actually happened: they all showed 1.3

steps to reproduce
1. look for a 1.2.5 server
2. add it to your server list.