Mac OS X 10.3 Pantherwas released on October 24, 2003 and was last updated on April 15, 2005, when the 10.3.9 update was released.
New features include Fast User

Switching (you no longer have to log out so another user can log in), Expose, File Vault (use at your own risk), and iChat AV, which added voice and video conferencingto the Mac's messaging client. TextEdit was updated to support Microsoft Word documents.
Minimum hardware requirements are a 233 MHz G3, a built-in USB port(requires New WorldROMs), 1.5 GB of available hard drive space, and 128 MB of RAM, although more is recommended. 256 MB is better, and 512 MB better yet.
FILESONIC

http://www.filesonic.com/file/4010528323/Panther.part1.rar
http://www.filesonic.com/file/4010528333/Panther.part2.rar
http://www.filesonic.com/file/4010528343/Panther.part3.rar
http://www.filesonic.com/file/4010528353/Panther.part4.rar
http://www.filesonic.com/file/4010528363/Panther.part5.rar