I have released a new version. This is mostly just an update of the Cairo libraries to the latest snapshot from CVS.
I made a minor change in Fl_SVG_Image so that the ARGB byte swapping is done on all platforms. This makes is easier for me to update the Cairo libraries (less changes to the Cairo code base).
As usual, let me know if you run into any problems. This should work out of the box on Linux, OS X, and Windows.