Redmine

Hi,

I created an account with the respectivly subdomain. (redmine and redmine.mydomain.com)

I just followed the redmine installation tutorial. (http://www.redmine.org/projects/redmine/wiki/RedmineInstall)
Once arrived to the step 9, its going bad...
When I start webrick, I couldnt access to the application web page with redmine.mydomain.com:3000

After some search. I follow this tutorial (http://adil.az/uncategorized/installing-redmine-on-cpanel/)
but after running /scripts/installruby I got a warning message:

Rails 3 has been detected on your system. Rails 3 is not supported at this time. Would you like to remove it and install a supported version of rails?

and during the install I got some error like:

Fetching: sqlite3-1.3.6.gem (100%)
Building native extensions.  This could take a while...
ERROR:  Error installing sqlite3:
        ERROR: Failed to build gem native extension.

        /usr/bin/ruby extconf.rb --with-sqlite3-include=/usr/local/include --with-sqlite3-lib=/usr/local/lib
checking for sqlite3.h... no
sqlite3.h is missing. Try 'port install sqlite3 +universal'
or 'yum install sqlite-devel' and check your shared library search path (the
location where your sqlite3 shared library is located).
*** 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:
        --with-opt-dir
        --without-opt-dir
        --with-opt-include
        --without-opt-include=${opt-dir}/include
        --with-opt-lib
        --without-opt-lib=${opt-dir}/lib
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=/usr/bin/ruby
        --with-sqlite3-dir
        --without-sqlite3-dir
        --with-sqlite3-include=${sqlite3-dir}/include
        --with-sqlite3-lib=${sqlite3-dir}/lib
        --enable-local
        --disable-local

Gem files will remain installed in /home/redmine/ruby/gems/gems/sqlite3-1.3.6 for inspection.
Results logged to /home/redmine/ruby/gems/gems/sqlite3-1.3.6/ext/sqlite3/gem_make.out
1 gem installed
Installing ri documentation for mongrel-1.1.5...
Installing RDoc documentation for mongrel-1.1.5...
Ruby - & - Rails Installed
rcsrecord skipped on /usr/local/apache/conf/httpd.conf because we do not own it or the directory it is in at /usr/local/cpanel/Cpanel/RcsRecord.pm line 40.
Configuring perl magic....Off
Configuring php-pear magic....Off
Configuring ruby magic....Off
Configuring php-pecl magic....Off
rcsrecord skipped on /usr/local/apache/conf/httpd.conf because we do not own it or the directory it is in at /usr/local/cpanel/Cpanel/RcsRecord.pm line 40.
NOTE: Gem.latest_load_paths is deprecated with no replacement. It will be removed on or after 2011-10-01.
Gem.latest_load_paths called from -e:1.
NOTE: Gem.all_partials is deprecated with no replacement. It will be removed on or after 2011-10-01.
Gem.all_partials called from /usr/lib/ruby/site_ruby/1.8/rubygems.rb:606.
NOTE: Gem.all_partials is deprecated with no replacement. It will be removed on or after 2011-10-01.
Gem.all_partials called from /usr/lib/ruby/site_ruby/1.8/rubygems.rb:606.
patch: **** Can't remove file /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/cgi.rb : Permission denied
patching file /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/cgi.rb
Unable to write to /var/cpanel/version/cpmongrel

Can someone tell me what im doing wrong and how can I make redmine 2.0.3 run properly ?

Thanks a lot