Solved Februari 8, 2013:
Bug with Update: If the user updates Tomcat, the https settings in Server.xml were removed.

Solved March 11, 2013
Bug with update: During an update the Tomcat ports should be retrieved from the previous installation.

Solved Mai 17, 2013
During an update from Tomcat 6 to Tomcat 7 the following error was reported:
Shutdown port not found
Cause: he installer searched the directory apache-tomcat-6.0.32. (with a point after the 32) and that doesn’t exist.
Solution in Apache_Tomcat_7.0.30.10.2.1.37