Now I'm just a newbie on this board, but I think I'm correct in stating that this is really a completely wrong forum to post this question.
Having said that, I believe there is documentation (including for installation) at http://jakarta.apache.org.
If you have a binary package (.tar.gz), it's really incredibly simple to get running. You essentially just expand it, follow the short instruction doc, and fire it up. And if you have problems, there are email lists you can subscribe to.