uninstalling PGadmin3

HI. I think this question might be better off in pgsql-novice, but here
goes.

I am running OSX Yosemite 10.10.5. I volunteered for a non-profit that is
building a database with Postgres. So Lynda.com told me to go here
http://www.enterprisedb.com/products-services-training/pgdownload#osx
and download PGadmin3 there so that i could connect with AWS where the DB
is hosted. But like an idiot I downloaded 9.1 not 9.5. I need 9.5 to access
fully what we are doing. So I removed the 9.1 that I initially installed,
and tried to download 9.5, but 9.5 won't connect to port 5432, I think
because 9.1 is already there.

I have scoured the internet looking for ways to "completely uninstall"
PGadmin3 but have not been able to make head or tail of the instructions -
I tried making a locate db to find particular files but that didn't work.

http://superuser.com/questions/720014/how-can-i-completely-uninstall-pgadmin3-from-os-x
seems to work for this guy, but I could not figure it out.

I tried simply restarting, that did not work. This can't be that
intractable a problem. Any help that folks on this list might be able to
give opening up port 5432 would be much appreciated.

--
Robert Katz