Try just leaving the field blank. Their might not be a password. Whenever it asks me for a password i just press enter. It demands for one even if there isn't one. Just press enter and see what happens.
If i can i'll do both. Since I am kinda a new mac guy. (old powermac G3s and powerbook g3s) trying to get to the newer stuff. I have tiger on my powermac and it is great but what could i do on the 1ghz powermac? Will it do H.264? Will i be able to play halo? (and i am planing on upgrading...