This is the case for Delphi2006 too
The Problem relies in a call like this NS_CreateInstance(NS_WEBBROWSER_CONTRACTID, nsIWebBrowser, FBrowser);
When using the SDK only, an exeptional Message is displayed in Japanese.

BTW: The original Package works, but has a BIG memory leak, when using the Gecko 1.9 GRE (every page reload, 1Mb virtual memory)