Hello,
I have a little 'of confusion in my head about installing ports and packages.
I can use Pkgng, and portinstall? And if I want to install from source?
Portinstall is already sources?
Thank you.

Portinstall will be the best to use. Pkgng is a replacement of pkg_add. Portinstall is part of ports-mgmt/portupgrade.

if I want to install from source?
Portinstall is already sources?

sher77 wrote:if I want to install from source?
Portinstall is already sources?

Since 3.5 yes.