Cannot use RVM commands even after modifying .bash_profile

I am a newbie RoR developer (and pretty newbie for programming in general). I followed the installation instructions on http://rvm.beginrescueend.com/rvm/install/ to a T. I added...

[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"  # This loads RVM into a shell session.

...to my .profile and .bash_profile (at the very end) and yet I still cannot load RVM as a function. Note that I am getting -bash: ??: command not found" in Terminal.