Update for patch 4.3. As far as I know the patch didn't break anything. Let me know if someone finds otherwise. :)

diff --git a/stAddonManager.lua b/stAddonManager.lua
index e70719b..510bd08 100644
--- a/stAddonManager.lua
+++ b/stAddonManager.lua
@@ -384,7 +384,7 @@ function stAddonManager:LoadWindow()
 	tinsert(UISpecialFrames,window:GetName());

 	window:SetSize(300,300)
-	header:SetSize(300,20)
+	header:SetSize(window:GetWidth(),20)

 	SkinFrame(window, true)
 	SkinFrame(header)
diff --git a/stAddonManager.toc b/stAddonManager.toc
index 7878977..d3dec80 100644
--- a/stAddonManager.toc
+++ b/stAddonManager.toc
@@ -1,4 +1,4 @@
-## Interface: 40200
+## Interface: 40300
 ## Author: Safturento
 ## Version: @project-version@
 ## Title: |cff00aaffst|rAddonManager