Problems installing rails on OSX

Help out a poor dumb Pythonista who's trying to give rails a try.

I'm running OSX 10.3.9. I followed the directions at http://www.rubyonrails.org/down and
installed from source ruby 1.8.4. OSX came with ruby 1.6.8 pre-installed in /usr/bin. I
moved that to /usr/bin/ruby-1.6.8 and make /usr/bin/ruby a symlink to /usr/local/bin/ruby.
All of this went well:

Roy-Smiths-Computer:rubygems-0.9.0$ ruby --version
ruby 1.8.4 (2005-12-24) [powerpc-darwin7.9.0]

Then I downloaded RubyGems, which went not so well:

Roy-Smiths-Computer:rubygems-0.9.0$ gem --version
/usr/local/lib/ruby/site_ruby/1.8/rubygems/cmd_manager.rb:52:in `initialize':
uninitialized constant Gem::CommandManager::HelpCommand (NameError)
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems/cmd_manager.rb:46:in `instance'
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems/gem_runner.rb:25:in `run'
        from /usr/local/bin/gem:23

Any hints what I might have done wrong, or where to start looking?

While you're sorting things out, I suggest Locomotive:

<http://locomotive.raaum.org/&gt;

It includes everything you need - ruby, needed gems, everything. No
installation required, doesn't interfere with your stock ruby, because
it's all contained inside the bundle. Brilliant. Plug, play. m.

···

Roy Smith <roy@panix.com> wrote:

Help out a poor dumb Pythonista who's trying to give rails a try.

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Roy Smith wrote:

Help out a poor dumb Pythonista who's trying to give rails a try.

>
...

while i cant help you with that I had no problems with hivelogics guidlines:

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