Apple has released updates to Safari and iWeb which contain improvements to compatibility and security.
Safari 5.0.2 Software Update:
This update contains improvements to compatibility and security, including the following:
● Fixes an issue that could prevent users from submitting web forms
● Fixes an issue that could cause web content to display incorrectly when viewing a Google Image result with Flash 10.1 installed
● Establishes an encrypted, authenticated connection to the Safari Extensions Gallery
For detailed information on the security content of this update, please visit this site:http://support.apple.com/kb/HT1222
iWeb 3.0.2 Software Update:
This update addresses issues when publishing to MobileMe and other minor issues.
You can download the updates by selecting Software Update from the Apple menu at the top left of your screen.