The project is finally up again!!
check it out -http://boinc.umiacs.umd.edu/


But I think that they're on a server change routine because boinc complains if you attach to that address.
This one looks kinda bad if you open it in a browser, but seems to be the correct address to attach to with boinc...
http://lysine.umiacs.umd.edu/lattice/

Now if they only had some workunits to spare...

EDIT: Vaughan, our old accounts still work!