Freebies could be Piccasa, or 'the gimp'
Many regular photo editors have free older versions.
PCA cover disks have from time stuff from Ulead-July 2006/Serif Jan 2006
or if you are in a buying mode one of the best is
PaintshopPro x about £60 or perchance version 8 or 9 for less if you can find it.