Paperclip Gem Successfully Installed? If yes its doesn't seem to detect via IRB..

Hi,

I am trying to install a paperclip gem using the command

`gem install paperclip-2.2.0.gem` . This doesn't work for me.. it keeps
giving me the error..

    mohnish@mohnish-desktop:~/Downloads/Important_backups/new_gems/paperclip$
gem install paperclip-2.2.0.gem
    ERROR: While executing gem ... (Zlib::GzipFile::Error)
        not in gzip format

I checked my gem sources and it shows:-

    mohnish@mohnish-desktop:~/Downloads/Important_backups/new_gems/paperclip$
gem sources
    *** CURRENT SOURCES ***

    http://rubygems.org/
    mohnish@mohnish-desktop:~/Downloads/Important_backups/new_gems/paperclip$

I have a feeling this doesn't work as I am behind a proxy( working from
office ).
I am not sure if this is the reason.. can anybody who reads this ,
please confirm the same.

When I manually downloaded the gems and tried to install the same with
the extra **`-l`**(its a minus l(el) and not a minus one as it looks
like). It worked. Is it that "-l" takes the gems from the local box ,
from the location where they are installed/present..? :-

    mohnish@mohnish-desktop:~/Downloads/Important_backups/new_gems/paperclip$
gem install paperclip-2.2.0.gem -l
    Successfully installed right_http_connection-1.2.1
    Successfully installed right_aws-1.9.0
    Successfully installed thoughtbot-shoulda-2.11.1
    Successfully installed paperclip-2.2.0
    4 gems installed
    Installing ri documentation for right_http_connection-1.2.1...
    Installing ri documentation for right_aws-1.9.0...
    Installing ri documentation for thoughtbot-shoulda-2.11.1...
    Installing ri documentation for paperclip-2.2.0...
    Installing RDoc documentation for right_http_connection-1.2.1...
    Installing RDoc documentation for right_aws-1.9.0...
    Installing RDoc documentation for thoughtbot-shoulda-2.11.1...
    Installing RDoc documentation for paperclip-2.2.0...
    mohnish@mohnish-desktop:~/Downloads/Important_backups/new_gems/paperclip$
gem sources

I am really not sure if this gem is fully installed successfully... . I
tried to check the same in my rails app using the IRB and this is what I
got... I would like to also add that I am making use of RVM currently
and I keep switching between versions `1.8.7` and `1.9.2` :-

    mohnish@mohnish-desktop:~/UP/pocs_tried_for_use/post_with_image$
ruby script/console
    Loading development environment (Rails 2.0.2)
    ruby-1.8.7-p334 :001 > require 'paperclip'
     => []
    ruby-1.8.7-p334 :002 > exit
    mohnish@mohnish-desktop:~/UP/pocs_tried_for_use/post_with_image$
    mohnish@mohnish-desktop:~/UP/pocs_tried_for_use/post_with_image$ gem
list

    *** LOCAL GEMS ***

    aasm (2.2.0, 2.1.1)
    action_profiler (1.0.0)
    actionmailer (2.3.5, 2.0.2)
    actionpack (2.3.5, 2.0.2)
    activerecord (2.3.5, 2.0.2)
    activeresource (2.3.5, 2.0.2)
    activesupport (3.0.0, 2.3.5, 2.0.2)
    acts_as_reportable (1.1.1)
    aws-s3 (0.6.2)
    builder (2.1.2)
    cgi_multipart_eof_fix (2.5.0)
    color (1.4.1)
    contacts (1.2.4)
    daemons (1.1.0)
    fastercsv (1.5.3)
    fastthread (1.0.7)
    ferret (0.11.6)
    gdata (1.1.1)
    gem_plugin (0.2.3)
    gettext (2.1.0)
    hoe (2.6.2)
    hpricot (0.8.3, 0.8.2)
    httpclient (2.1.5.2)
    image_science (1.2.1)
    json (1.4.6)
    json_pure (1.4.6)
    locale (2.0.5)
    log4r (1.1.8)
    macaddr (1.0.0)
    mechanize (1.0.0)
    memcache-client (1.8.5)
    mime-types (1.16)
    mocha (0.9.8)
    mongrel (1.1.5)
    mysql (2.8.1)
    nokogiri (1.4.3.1)
    paperclip (2.2.0)
    passenger (2.2.4)
    pdf-writer (1.1.8)
    prawn (0.8.4)
    prawn-core (0.8.4)
    prawn-layout (0.8.4)
    prawn-security (0.8.4)
    rack (1.0.1)
    railroad (0.5.0)
    rails (2.0.2)
    rake (0.8.7)
    RedCloth (3.0.3)
    rfacebook (0.9.8, 0.9.0)
    right_aws (1.9.0)
    right_http_connection (1.2.1)
    rmagick (2.9.1)
    ruby-activeldap (0.8.3.1)
    ruby-net-ldap (0.0.4)
    ruby-openid (2.1.8, 2.0.2)
    rubyforge (2.0.4)
    rubygems-update (1.3.7)
    ruport (1.6.3)
    scrubyt (0.4.06)
    thoughtbot-shoulda (2.11.1)
    tinyurl (1.0.0)
    transaction-simple (1.4.0)
    uuid (2.3.1)
    xml-simple (1.0.12)
    mohnish@mohnish-desktop:~/UP/pocs_tried_for_use/post_with_image$
ruby -v
    ruby 1.8.7 (2011-02-18 patchlevel 334) [i686-linux]
    mohnish@mohnish-desktop:~/UP/pocs_tried_for_use/post_with_image$
rails -v
    Rails 2.0.2
    mohnish@mohnish-desktop:~/UP/pocs_tried_for_use/post_with_image$

I have added a require 'paperclip' in my environment.rb and my post.rb
model.

Is there any other way , I can check if this gem or any other gem for
that matter is successfully installed or not..?

Kindly guide me on this.

Thank you...

Thanks for your inputs.