I'm currently creating (again) a new site, based on Joomla 1.5 RC3 (If you're interested: It's "Täglich ein Bild ". Unfortunately the Joomap Component didn't work properly with Joomla 1.5 (even in legacy mode). So I did a quick hack, it's not perfect, but it works for me. If you're interested, you can download it here

Please be aware that I did that just for my own purpose and will not provide any support for it.