Head here for the download.
This is the first beta of 4.1.3 and it's fairly complete for the release. The major new item is improved Blogger/Google support via some new facilities they just released. The situation there should be much improved. There are also a few other bugs fixed and minor changes, such as keywords being sent to LiveJournal. This will be a fairly small release, with probably not much more than you see here. Please check it out and let me know of any problems.