http://www.adobe.com/svg/viewer/install/mainframed.html
http://www.adobe.com/svg/eol.html
Firefox and Opera already have native support for SVG, IE is running behind and SVG is still not on the IE road map.
Adobe does not currently have plans to remove Adobe SVG Viewer from the Adobe.comdownload area. Adobe recognizes that customers have built Web applications thatdepend on ASV being available for download, and although Adobe does not plan todevelop ASV further, we plan for the existing versions to be available for download aslong as our customers rely on them.
The Narrative Report is only tested with IE+ASV and Firefox browsers. However if you use the latest skin and are prepared to install Inkscape on your system then PDF only genomaps can be generated by selecting the appropriate option in the Configuration Parameters dialog when generating report.
p.s. Have just tried Opera with http://familytrees.genopro.com/Ron/HarryPotter/ and seems to work reasonably well except that direction arrows do not stay in the right positions. In fact seems more responsive than Firefox and has context menu zoom in/out! Perhaps as the message suggests your web server is not configured for SVG correctly. Try publishing to familytrees.genopro.com instead.