The solution wsa to read the directions and use my head for something other than a doorstop. Hence my previous comment. I don't know about y'all, but I make a sport of ragging on myself, so just imagine a healthy dose of sarcasm when I refer to me.
Anyhow, using command 'l' from within fdisk gives the table containing number codes for various file systems. It showed the native linux file system (83, I think, or maybe 84), so I used it. Then I was given the option of choosing specifically which version, and chose ext4.
My biggest problem is I am so used to Windows, where thinking will get you in trouble. So I'm having to learn a new mindset to make Ubuntu work. It's kinda nice, really...
On a brighter note, I was able to format my hard drive, and install Ubuntu, Apache, MySQL, PHP, NFS, and a couple of other goodies. The upshot of which is I can now build websites in Dreamweaver (about the only Windows app I can't quite give up yet) on my Vista machine, and it will save them to my public_html directory on my Ubuntu machine. I am lovin' it! So I can test/debug without having to FTP to a remote server anymore, and I don't have to muck around with moving files either. It's all maintained in a stable structure, all I gotta do is build webpages. YEEHAAA!!