http://www.macrumors.com/2009/03/03/apple-releases-ilife-support-9-0-1-and-iphoto-8-0-1-updates/

In addition to the numerous hardware and software updates already detailed today, Apple has released an additional pair of updates related to its iLife suite of applications:

iLife Support 9.0.1 weighs in at 50.56 MB and requires OS X 10.5.6.

Quote:
This update improves overall stability and addresses a number of other minor issues. It is recommended for all users of Aperture, iLife '09, and iWork '09.


iPhoto 8.0.1 weighs in at 11.9 MB and also requires OS X 10.5.6.

Quote:
This update improves overall stability and addresses minor issues in a number of areas, including internet connectivity, keyword import, and slideshow export.

updates are good

usually, yes