The easiest way to install is to go to the JBoss downloads http://sourceforge.net/project/showfiles.php?group_id=22866&package_id=16942&release_id=523619 and select the "jboss-4.2.1.GA.zip" download from the list of available downloads. Download this to your system. Once the download completes, unzip it to any folder on your system. That's all it takes to install JBoss.
ok,thank you !
because eclipse3.2 does'nt support 4.2, now i download 3.3,CAN CONFIG THE SERVER WITH JBOSS.
but i cant't new a progarm (jboss-seam),when i click to the finish ,it did'nt work.i had installed the JBossIDE-2.0.0.Beta2-ALL