As I can see WoWAce changed the html pages a bit. You have to change _downloadPattern to @""">Download:" at line 14 in SiteWowAce.cs.
If you want to see the very first line of changelog you have to change i += 6 to i += 4 at line 157 in SiteWowAce.cs.
Could not load file or assembly 'ICSharpCode.SharpZipLib, Version=0.85.5.452, Culture=neutral, PublicKeyToken=1b03e6acf1164f73' or one of its dependencies. The system cannot find the file specified.
at Waddu.Core.ArchiveHelper.Expand(String archiveFile, String targetFolder)
at Waddu.Core.WorkItems.WorkItemAddonUpdate.DoWork(WorkerThread workerThread)
at Waddu.Core.WorkerThread.ThreadProc(Object param)
I created a little parser to mappings file and load all of my and Roemer's mappings to a database. If you want to use my extended mappins add http://taki.alkoholista.hu/WoW/Waddu/mappings.php to Waddu config as custom mappings. I will write a page where registered users can add/edit mappings :)