Here is some good news... Enterprise Library has been updated and has moved from its old home on GotDotNet to CodePlex!
Here is their new site: http://www.codeplex.com/entlib
For all the details, see Tom Hollander's blog post. Lots of good stuff in there.
PS. If you want to help us out a bit... click that codeplex link... just once... come on... you can do it... we want to be #1 on codeplex. :)