Jerimy Katz is a Fedora developer. In a post to the fedora-devel-list he said:
So, you have to wait the release date (Monday, 20 February).
Although I hate to do it, it looks like we're going to have to slip Fedora Core 5 test3 by a week. There is an ABI change in the gcc/glibc stack that requires a rebuild of the entire distribution. Given that, there is no way that we'll be able to make a freeze date of Monday. So, test3 will now freeze on Monday, 13 February with a release date of Monday, 20 February.
We'll adjust the final schedule sometime next week based on the progress of the rebuilding efforts.
So, you have to wait the release date (Monday, 20 February).