Welcome to Linux and LQ!
Apparently, you're not the only prospective Ubuntu user with this problem. There's (at least) one
similar thread here on LQ and lots of stuff if you search for "boot floppies" on
Ubuntu Forums. Please don't get this wrong, but it helps everyone if you search the forum for your problem before posting (search LQ that is; I wouldn't have expected you to come up with the Ubuntu Forum). You get quicker results and others are spared of answering the same questions all over again.
That said, I'd recommend you try the
(almost) painless way to install Ubuntu from a USB optical drive. Linux is all about choice, so there's lots of other ways you could do this (e.g. by using
Debian's boot floppies), but I guess this is the easiest way.
Good luck and feel free to come back here if that didn't help.