Normal
I have not been able to use the install application either. But as misterd pointed out in an earlier post, you can just run the sql script (I think it is called UpdateMySqlDatabase.sql or something similar) against your MySql database and replace the dlls/exe. Make sure you backup the files being replaced so that you can revert back in case you want to. To revert back changes back in the database itself, you can run the script called RevertMySqlDatabase.sql or something similar.