UNIX for Dummies Questions & Answers

So I am ridiculously new to UNIX. The closest thing to it I use is Mac OS X. Recently I downloaded OpenDarwin 7.2.1 just to see what it was like. I popped it into Vmware, installation and boot work well, and I login.
Now I am presented with a console. I'm generally okay with command line stuff, but I'd like a GUI and have no idea how to go about getting one, and after googling all I gather is that I need to download MacPorts and then whatever WM I like (GNOME or KDE, maybe?). The problem is that I don't know how to download these files with only a terminal. From what I've been reading, it looks similar to the Linux method but every time I follow the instructions on the websites I have visited, I get either a "step 1: install macports" or a get command for a file that no longer exists or something that I don't understand. Any help?

you need some tools from the mac cd to install macports...
InstallingMacPorts - MacPorts - Trac

why you are using darwin? go for a linux distro (e.g. ubuntu) and you have a gui. if it has to be unix, solaris might be an option...

I do have Fluxbuntu and OpenSolaris. I'm not really using these for any purpose other than learning about them. The only operating system I used for the first fourteen years of my life was Windows, in various flavors. Since then, I've come a long way, but this year was really the year where I discovered several things, but most importantly open source software. Considering OpenDarwin is dead, I'd like to hold on to it, as soon it will probably unobtainable except for the source code from apple.
By the way, thanks for the link. Mac CD is lying around somewhere.