We've moved (again). http://achernar.sourceforge.net.

A little history: What once was Ultra got renamed to Archenar, someone (called Exar) accidently messed up and we moved to Arch. Then some fool (me) found out he'd spelt Archenar wrong, (it's actually spelt Achernar), and we decided to start from scratch using the proper spelling. (I hope this makes sense).