The disks I have
burned have ONE file, ending in i386.iso. So, what should I do next?
(I'm sorry to sound so dumb, but this is the first time I've ever
tried to do this.) I went to the Ubuntu site, and downloaded what was
offered, or at least I thought so. I must have missed a step in there,
somewhere.

Now I have such files for v7.04 and v6.06.1. Assuming that I can get
the right material on a disk, which of these is considered better?