Problem with Flickr need help

I was able to add Flickr to my website at home but at my university it
will not run. The only thing I can think is the problem is that it is
run from the USB and at home the usb comes up as G: where as at
university it is E:

Here is the error I get can anyone help me?

E:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependenci
es.rb:266:in `load_missing_constant': uninitialized constant
ActiveRecord (NameE
rror)
        from
E:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_suppo
rt/dependencies.rb:453:in `const_missing'
        from
E:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_suppo
rt/dependencies.rb:465:in `const_missing'
        from E:/ruby/bin/railapps/FlashItem/app/models/flickr.rb:1
        from
E:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `ge
m_original_require'
        from
E:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `re
quire'
        from
E:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_suppo
rt/dependencies.rb:496:in `require'
        from
E:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_suppo
rt/dependencies.rb:342:in `new_constants_in'
        from
E:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_suppo
rt/dependencies.rb:496:in `require'
         ... 14 levels...
        from
E:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:3
9
        from
E:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `ge
m_original_require'
        from
E:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `re
quire'
        from script/server:3