Sounds like you are using the EnhancedVisualGraph.
I fixed all the bugs you mentioned a while ago but have been super lazy about pushing them back out to SVN/googlecode since I use git, and to me git svn can be quite a bear!
Either way though I pushed out all of my code to SVN/google code.
For you and everyone else I also made it so that the examples and the library compiles with no warnings in Flex 4.1 with Flex 3 compatibility mode turned on. I have placed all of the binaries in all of the proper spots to be picked up in the RaVis wiki page.
I have also updated the ASDoc because I made some changes to the API which break backwards compatibility. The change I made was to turn the EdgeRenderers into true renderers, set on VisualGraph using a class factory. I did this so that we can now have mouse events on edges as well as nodes.
Let me know if you can't find the items you need.