appears to be working! ;D
http://71.206.133.215/CubeWars/CW.jnlp
usernames: guest# (where # is 1-7)
passwords: guest# (where # is 1-7)
and they must match (example: un: guest1 pw: guest1)
Note: I have note tested whether there will be chat conflicts if 2 people using guest3 (or whatever, the same username) will cause errors, but if you see that let me know. I can also assign a unique username if you PM me!
All criticism welcome!!!