Enable Anonymous Access MOSS 2007

Enabling Anonymous access is easier than baking an apple pie and I would guess if you're enabling this you probably don't bake much....

In Central Admin - Application Management
Select Authentication Providers under Application Security
Choose the Web Application from the dropdown on the upper right you need to change
Click the zone (default, extranet etc)
Check the box to Anonymous Access and Save

Now go to your website
Click Site Actions - Site Settings - Modify all site settings
Click "advanced permissions" under Users and permissions
Click "Settings" on the top toolbar
Click Anonymous Access.

There are 3 options
None
Lists and Libraries and
Entire Site

2010 Training

http://blogs.msdn.com/arpans/archive/2010/01/07/sharepoint-2010-end-user-training.aspx