Windower 3.41 has been released fixing many of the critical bugs introduced in the Sep 2008 patch and the 3.4 release bugs, along with an upgrade to alias.
Get more information and download here: http://wiki.windower.net/windower/latest
BlinkMeNot and IME & PetTP plugins have also been updated for the sep patch, redownload here:
http://wiki.windower.net/plugins/blinkmenot
http://wiki.windower.net/plugins/ime
http://wiki.windower.net/plugins/pettp