Insatall BT5 over Ubuntu on dual-boot w/XP

Hello - I installed the latest Ubuntu as a dual-boot with XP... I have decided that I'd rather have Backtrack... I have burned the iso... question: Can I safely install BT5 by just telling it to use the Ubuntu partition? Will it just reformat that partition, with a fresh grub? Or do I have to do things the inconvenient way by deleting the partition, using XP boot disc, running fixmbr... etc?

You can install BT5 over the Ubuntu partition, but it is recommended to re-create the partition. You can leave the swap partition untouched.

You might want to use gparted (is in teh BT5 DVD you burned)..Open up a terminal and type gparted. Erase the Ubuntu partition and create a new one with ext4 filesystem. Apply changes

Then just install the BT5r3.

Luck..