Hello,   
I have setup the Ruby on Rails application. 
And it fails to start. The mongrel log sais:   
** Daemonized, any open files are closed.  Look at log/mongrel.pid and log/mongrel.log for info. 
** Starting Mongrel listening at 0.0.0.0:12184 
** Starting Rails with development environment... 
Rails requires RubyGems >= 1.3.1 (you have 1.2.0). Please `gem update --system` and try again.   
I have tried to fix it simply installing gems upgrade with rubygems-update in the Ruby Gems tool in Cpanel, but that didn't solve my problem   
So It seems that I need to upgrade gems with that command. Unfortunately I don't have access to the command line so could you please run this command for me?   
My account is roody.heliohost.org.   
Thanks in advance.