Does anyone know anything about FFmpeg?

I used this tutorial to install FFmpeg on my server but I can't find the path to the directory after I did it... either I deleted it or I didn't use the correct path when I installed it. Should I have substituted something for $HOME like my own personal paths or was I supposed to used $HOME? Here are the instructions:

Login to SSH as the owner account of your directory
If ~/bin doesn't already exist, enter "mkdir bin" to create it
Enter "chmod 775 bin" to set the correct permissions for the bin directory
If ~/lib doesn't already exist, enter "mkdir lib" to create it
Enter "chmod 775 lib" to set the correct permissions for the bin directory
Enter "svn checkout svn://svn.mplayerhq.hu/ffmpeg/trunk ffmpeg" to download the ffmpeg program source
Enter "cd ffmpeg" to navigate to the source directory
Enter "./configure --prefix=$HOME --cross-compile"
Enter "make"
Enter "make install"
Enter "cd .." to exit the ffmpeg directory
Enter "rm -rf ffmpeg" to delete the directory and clean up after your compilation
If no errors occur, FFmpeg should now be installed in ${HOME}/bin with supporting libraries in ${HOME}/lib.