Paint Shop Pro, among others. There are quite a lot of them actuslly, some free. Google for graphics programs.
By the way, I'm pretty sure Photodeluxe WILL run on XP. Have you tried installing it?
My kids used to enjoy swapping heads on photos using Adobe PhotoDeluxe. Adobe no longer makes PhotoDeluxe & it will not work with Windows XP anyway. Can anyone recomend a good, simple & inexpensive program that will make swapping heads easily available again?