I have worked with php for awhile and am taking a look at moving to RoR. I am working my way through Simply Rails 2 and ran into a problem with installing. I am running on Windows XP 32-bit SP3. The Ruby version that was installed is ruby 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin32] and the Rails version is 3.2.5. The Apache version is 1.3.33.

I downloaded InstantRails-2.0-win.zip and followed the instruction to install it. I have the InstantRails console up but when I entered the
gem update
command, I started seeing errors. Here is the output from the window ( the errors have been highlighted and are in red text):
C:\INSTAN~1>CD C:\InstantRails

C:\InstantRails>PATH C:\InstantRails\ruby\bin;C:\InstantRails\mysql\bin;C:\Progr
am Files\Common Files\Microsoft Shared\Windows Live;C:\Program Files\Common File
\system32\WindowsPowerShell\v1.0;C:\Program Files\QuickTime\QTSystem\;C:\Program
 Files\Common Files\DivX Shared\;C:\Program Files\ATI Technologies\ATI.ACE\Core-
Static;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\INSTAN~1\r

C:\InstantRails>cd rails_apps

 Volume in drive C has no label.
 Volume Serial Number is B06F-07AB

 Directory of C:\InstantRails\rails_apps

02/04/2010  09:34 AM    <DIR>          .
02/04/2010  09:34 AM    <DIR>          ..
02/04/2010  09:34 AM    <DIR>          .metadata
02/04/2010  09:34 AM    <DIR>          cookbook
02/04/2010  09:35 AM    <DIR>          typo-2.6.0
               0 File(s)              0 bytes
               5 Dir(s)  686,822,768,640 bytes free

C:\InstantRails\rails_apps>gem update
Updating installed gems
Updating actionmailer
Successfully installed activesupport-2.3.5
Successfully installed rack-1.0.1
Successfully installed actionpack-2.3.5
Successfully installed actionmailer-2.3.5
Updating activerecord
Successfully installed activerecord-2.3.5
Updating activeresource
Successfully installed activeresource-2.3.5
Updating capistrano
Successfully installed net-ssh-2.0.19
Successfully installed net-sftp-2.0.4
Successfully installed net-scp-1.0.2
Successfully installed net-ssh-gateway-1.0.1
Successfully installed capistrano-2.5.14
Updating fxri
Successfully installed fxri-0.3.7
Updating fxruby
Building native extensions.  This could take a while...
ERROR:  Error installing fxruby:
        ERROR: Failed to build gem native extension.

C:/InstantRails/ruby/bin/ruby.exe extconf.rb
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:
extconf.rb:31:in `find_installed_fox_version': couldn't find FOX header files (R
        from extconf.rb:125

Gem files will remain installed in C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/f
xruby-1.6.20 for inspection.
Results logged to C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/fxruby-1.6.20/ext/
Updating highline
Successfully installed highline-1.5.2
Updating hpricot
Successfully installed hpricot-0.8.2-x86-mswin32
Updating log4r
Successfully installed log4r-1.1.4
Updating mongrel
Successfully installed mongrel-1.1.5-x86-mswin32-60
Updating mysql
Successfully installed mysql-2.8.1-x86-mswin32
Updating rails
Successfully installed rake-0.8.7
Successfully installed rails-2.3.5
Updating sqlite3-ruby
Successfully installed sqlite3-ruby-1.2.5-x86-mswin32
Updating win32-api
ERROR:  While executing gem ... (Gem::GemNotFoundException)
    could not find gem win32-api locally or in a repository
Any pointers would be appreciated.