updating from Hoary to Breezy

[Nicolas Chevreux]

Hello,

I have played around with Hoary on a dual-boot system with XP some 
months ago, liked it, but decided to wait for Breezy to make the switch 
and (hopefully) be able to work 100% on Ubuntu in the future.

I find myself with a HD with one NTFS partition (XP), one FAT32 and one 
ext2 (or 3?) (Hoary).

I want to do a totally clean install of Breezy, and discard everything 
Hoary, to get a fresh start. I also plan on resizing the partitions 
while doing this.

With Breezy being released soon, I've got a few questions:
-can I resize my partitions now, or should I do thisi only with the 
partitionner in the Breezy installer? I am afraid of nix-ing the GRUB 
folder, and therefore not be able to boot XP anymore.
-can I just specify the existing Hoary partition as the installation 
partition for Breezy, or should I delete everything on it beforehand? 
Once again, I want to get a totally fresh install (I played to much with 
Hoary and broke parts of it)? Will Breezy just reformat the partition 
and install itself on it?

Thanks for your help

Nicolas