Once again, Eric has released KDE packages for Slackware-Current on his KTown repository. This time, KDE SC 4.5.1 has been shipped by Eric after he decided to build his own KDE packages instead of waiting until it come up in -Current.
At this time, all KDE 4.5.1 packages can be downloaded from KTown repository or by the help of several mirrors mentioned by Eric on his blog post.
Don't forget to read the README for instructions and warnings. It's safer to use Slackware-Current instead of Slackware 13.1 if you wanted to upgrade to this version, even though some people has reported that they were using 13.1 and found no problems using it.
All of those packages can be downloaded from UKDW Repo server via http or rsync service:
Enjoy KDE SC 4.5.1