software installation - upgrade pgadmin3 1.16 to 1.18

I'm running Ubuntu 13.04 and have pgadmin3 1.16 installed.

I downloaded pgadmin3-1.18.1.tar.gz from http://www.postgresql.org/ftp/pgadmin3/release/v1.18.1/src/

I followed all the instructions found in the INSTALL file and make install seemed to work well.
the problem is that when I try to run pgadmin3, it still opens 1.16.

I tried uninstalling 1.16 and then reinstalling 1.18, but then I can't even find the executable.

my guess is that 1.18 is installed, how/where can I find it? or if not, how do I upgrade 1.16 to 1.18

thanks!

EDIT

the commands I ran are:

1. taken from How can I update pgadmin3 to v1.14?
   and http://linuxrails.blogspot.co.il/2012/09/install-pgadmin-for-postgresql-92-on.html

   
   
   
   
   
   • sudo apt-get remove pgadmin3
   
   
   • sudo apt-add-repository ppa:voronov84/andreyv
   
   
   • sudo apt-get update
   
   
   • sudo apt-get install pgadmin3
   
   



2. from pgadmin3-1.18.1/INSTALL

   
   
   
   
   
   
   • sudo apt-get remove pgadmin3
   
   
   • tar xvfz pgadmin3-1.18.1.tar.gz
   
   
   • cd pgadmin3-1.18.1
   
   
   • ./configure
   
   
   • make all
   
   
   • sudo make install
   
   

Add following line to /etc/apt/sources.list:

deb http://apt.postgresql.org/pub/repos/apt/ precise-pgdg main

Then run:

sudo apt-get update
sudo apt-get install pgadmin3