The rpm package cannot be installed.

The rpm package cannot be installed-general Linux technology-Linux technology and application information. For more information, see. My system is centos5. 2. After the kernel is upgraded, you can install the rmp package by double-clicking it. However
After double-clicking, the archive Manager page appears. I don't know what is going on.
Run the rpm command to install the following prompt:
[Root @ localhost ~] # Rpm vih AdobeReader_chs-8.1.3-1.i486.rpm
RPM version 4.4.2
Copyright (C) 1998-2002-Red Hat, Inc.
This program may be freely redistributed under the terms of the GNU GPL

Usage: rpm [-aKfgpWHqV] [-aKfgpWHqVcdils] [-Example] [-aKfgpWHqVcdilsaKfgpWHqV] [-Example] [-Example] [-Example] [-Example] [-Example] [-Example]] [-aKfgpWHqVcdilsaKfgpWHqVKiv?] [-A | -- all] [-f | -- file] [-g | -- group]
[-P | -- package] [-W | -- ftswalk] [-- pkgid] [-- hdrid] [-- fileid]
[-- Specfile] [-- triggeredby] [-- whatrequires] [-- whatprovides]
[-- Nomanifest] [-c | -- configfiles] [-d | -- docfiles] [-- dump] [-l | -- list]
[-- Queryformat = QUERYFORMAT] [-s | -- state] [-- nomd5] [-- nofiles]
[-- Nodeps] [-- noscript] [-- comfollow] [-- logical] [-- nochdir]
[-- Nostat] [-- physical] [-- seedot] [-- xdev] [-- whiteout]
[-- Addsign] [-K | -- checksig] [-- delsign] [-- import] [-- resign]
[-- Nodigest] [-- nosignature] [-- initdb] [-- rebuilddb] [-- aid]
[-- Allfiles] [-- allmatches] [-- badreloc] [-e | -- erase +]
[-- Excludedocs] [-- excludepath = ] [-- Fileconflicts] [-- force]
[-F | -- freshen +] [-H | -- hash] [-- ignorearch] [-- ignoreos]
[-- Ignoresize] [-I | -- install] [-- justdb] [-- nodeps] [-- nomd5]
[-- Nocontexts] [-- noorder] [-- nosuggest] [-- noscripts]
[-- Notriggers] [-- oldpackage] [-- percent] [-- prefix = ]
[-- Relocate = = ] [-- Repackage] [-- replacefiles]
[-- Replacepkgs] [-- test] [-U | -- upgrade +]
[-D | -- define 'macro expr'] [-E | -- eval 'expr'] [-- macros = ]
[-- Nodigest] [-- nosignature] [-- rcfile = ] [-R | -- root ROOT]
[-- Querytags] [-- showrc] [-- quiet] [-v | -- verbose] [-- version]
[-? | -- Help] [-- usage] [-- scripts] [-- setperms] [-- setugids]
[-- Conflicts] [-- obsoletes] [-- provides] [-- requires] [-- info]
[-- Changelog] [-- xml] [-- triggers] [-- last] [-- filesbypkg]
[-- Fileclass] [-- filecolor] [-- filecontext] [-- fscontext]
[-- Recontext] [-- fileprovide] [-- filerequire] [-- redhatprovides]
[-- Redhatrequires] [-- buildpolicy = ] [-- With = ]
[-- Without = ]
[Root @ localhost ~] #