Winmapper is broken.
I didn't have time yet to convert the application to work with the new maemo-mapper. The source code is included in the zip on the website, so if somebody else makes the changes to work with the new version of mm, I will be happy to compile it.

When I get some time on my hands, I'll do it. I have a 6 monts old baby girl... so is kind of hard to take care of my pet projects right now.