Pain finding packages

[Joe Springer]

Hi.

I am very new to FreeBSD with several years of Linux experience. After installed FreeSDB for the first time, I wanted to install some packages. For example, samba.

I found that

   pkg_add -r samba 

fails. I need to know specifically the samba version to install it. 

To install, I needed do this:
   pkg_add -r samba3

This is difficult. Do I need to look up every package in advance on your website to understand what version I need to install?

Isn't there a way to specify "Install the latest version of some package that is appropriate to the version of my installed FreeBSD"?

Thanks,
Joe