when i d/l files from net
"/usr/port/editor/koffice then make" i don't know what excactly have to do after
when it finnished d/l it and configure i guess what its done downloading file it configures 
the file
what do i have to do next
I use FREEBSD 4.5
Please provide more details. What platform/version of Unix are you using?
As root, you want to issue the command `make all` from the usr/port/editor/koffice sub-dir and if make all is sucessful, you want to issue `make install`.
That is normally all that is required for most FreeBSD ports.
The easiest method to install software in FreeBSD is through the ports collection.
Log in as root then type /stand/sysinstall and hit enter.
Choose the Post-Install Configuration option then Add Pre-Packaged Software and away you go.
The other way is to pull a port or package down via ftp then in the directory you put it in type make install clean and you should be up and going. The port or package will pull all necessary dependencies in for you. Pretty slick eh?
As far as other software goes (For instance Applixware Office 5.0) it can be rather touch and go. You may have to figure out all the dependencis and install them yourself. For what its worth, I've not yet been able to get Applixware to work. Oh well.