My Os is CentOS 5.0. I need Jboss for it, but i can't find it on internet.
Please help me! can you give me link to download Jboss.?
Thanksss!

Your OS is CentOS 5.0, which is Linux (as you also said). Try downloading just about any Linux version of JBoss, and give it a try.

Edit: Also, if you know anything about JBoss, you know that it is written in Java, so simply go to http://sourceforge.net/projects/jboss/ and download it. It says right on the page OS Independent.