RVM Instalation problem in Ubuntu

Hi,

  I am struggling with rvm installation in my stystem. I listed here what i followed dureing the installation. Please any one tell me what i did wrong in it.

I need to use the rvm for multi-user.

1. root@my-desktop:/usr/local/rvm/src# aptitude install curl git-core
2. root@my-desktop:/usr/local/rvm/srcgit clone http://github.com/wayneeseguin/rvm.git
3. root@my-desktop:/usr/local/rvm/src# cd rvm/
4. root@my-desktop:/usr/local/rvm/src/rvm# ./install

After this step i got the following messages,

  If you have any questions, issues and/or ideas for improvement please
fork the project and issue a pull request.

If you wish to disable the project .rvmrc file functionality, set
rvm_project_rvmrc=0 in either /etc/rvmrc or ~/.rvmrc.

Thank you for using RVM!

I sincerely hope that RVM helps to make your life easier and more enjoyable!!!

  ~Wayne

5. I set .bash_profile file as "if [[ -s /usr/local/rvm/scripts/rvm ]] ; then source /usr/local/rvm/scripts/rvm ; fi"
6. In .bashrc,

  # If not running interactively, don't do anything
   if [[ -n "$PS1" ]]; then

  At the end of line,

  [[ -s "/usr/local/lib/rvm" ]] && . "/usr/local/lib/rvm"

fi

7. I checked my /usr/local folder. The rvm is installed.

8. In /etc/bash.bashrc, i have added the followings,

   if [ -s "$HOME/.rvm/scripts/rvm" ] ; then
     . "$HOME/.rvm/scripts/rvm"
   elif [ -s "/usr/local/rvm/scripts/rvm" ] ; then
     . "/usr/local/rvm/scripts/rvm"
   fi

9. After these stpes, i opened new terminal and typed which ruby but there is nothing displayed,

i.e
-----
  my@my-desktop:~$ which rvm
  my@my-desktop:~$

   
Please any one help me regarding this?...