Bukket running error please help!!!

Ok so i run the the bukkit.jar file like it tells me and i get the following error

Code:

[root@server1 bukket2]# java -Xms512M -Xmx512M -jar craftbukkit.jar nogui
Exception in thread "main" java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/Main
Caused by: java.lang.ClassNotFoundException: org.bukkit.craftbukkit.Main
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Could not find the main class: org.bukkit.craftbukkit.Main. Program will exit.

 

same....

 

same. Every way i try i get that.

 

Are you running the latest build? 61?

 

the link in the How to run a server is outdated, downloaded it elsewhere and its all fine. (well, for an indev thing.)