Sorry about that, I didn't think the regular Google Maps even worked because of the scrolling issue.

The search engine specifications are not stored in a seperate file, but are hard-coded directly in the source code (this will not be the case in the next version, I'm currently writing a front-end for user-inputted search engines) -- so that needs to be edited directly.

It isn't too hard to do that, but you need some sort of sftp in place to make it much less painful.

If you do have this, give this thread a bump and I will post a quick howto on how to do this (the actual source code editing is easy, just comment/uncomment one line, just what is needed to do it is the hard part: sftp, root access, etc.).