I found the download at:

http://www.mlb.com/mlb/subscriptions/download.jsp

Warning:

Before download, make sure you set a system restore point. This can be found at START, ALL PROGRAMS, ACCESSORIES, SYSTEM TOOLS,  SYSTEM RESTORE. CREATE A RESTORE POINT. Should your computer act funny, you can always fall back to the way things were before you installed these few hundred programs and downloaded the 30 or so megabytes from Microsoft. Just follow the previous steps and select the restore option.

The download installs version 3 of Microsoft .NET framework. Thus, your windows-xp or vista must be at the latest software level, before you begin. Make sure to visit MICROSOFT Update.

Also, this is a heavy weight install. It can take from 20 minutes to an hour. After the install begins, close all the browser windows so that the installation has plenty of memory to work with. I would not recommend this software if you only have 512 meg of RAM.

Good luck. I'll monitor this thread and if you have questions, I'll try and answer. I don't know squat about MAC.

I see a whole bunch of games for tonight! Hope this isn't an April fools joke.