MSN 3.5 is now available on the Microsoft website.
In this new version there is an option to save and search the conversations held, change your identity by simply typing a new one (registered) and organize contacts into groups, with options to control connected users by groups.
You can download the program directly from here.
The program requirements are:
Processor: Macintosh PowerPC.
Operating system: Mac OS X version 10.1.3 or later.
Memory: 128 MB of RAM.
Hard disk: 8 MB of available hard disk space.
Programs: Microsoft® Internet Explorer version 5.2.2 or later, Netscape Navigator version 6.0, or later.
Modem: 28.8 Kbps or higher.
Internet access: Internet connection through either an Internet service provider (ISP) or a network. Internet access might require a fee to an ISP; local or long-distance telephone charges might also apply.
Highly recommended to disable the advertising option in the view menu. As a curiosity, the application icon in the dock changes color depending on the status of our connection.