Every installation disk has as one of its setup options something like
"erase and use whole disk for Ubuntu". That should be all you need.

As a more complicated alternative, download and burn a CD with the self
booting version of gparted. With it you can delete all partitions and set
up one or two (a second for home) partitions for your clean install.

Let us know how this works for you.

It doesn't sound like Clayton intends to delete Win XP. Through gparted you
should be able to delete the partitions that do not have XP IF AND ONLY IF you
know what you are doing.

What Clayton said was: "I want to remove all of these so that I can then
have a fresh start with 1 installation of Ubunto 11.10 from a iso DVD and
nothing more."

No mention of dual booting with XP or retaining what he had. If I have
mistaken his wishes I hope he will correct me.

You're right, I initially thought he was referring to "nothing more" on
the Linux side.

I never want to be "right", just helpful. I hope we will receive a very
positive reply from a satisfied Clayton Ubuntu user soon!

Little confusion here whether you wish to keep WinXP or just have
Ubuntu. The way forward depends on which - so can you advise if WinXP
is to be kept or not.