iBZEdit iBZServer
The iBZEdit and iBZServer sites have been completely removed, they will not be restored.
You can check out sourceforge.net and http://www.bzmapping.co.nr/ for binaries and sources.
I also recommend you check out BZWorkbench, it will be the new multiplatform map editor for BZFlag. It is still early in the progress and are not yet ported to mac, but maybe you can contribute with something :)