I have a new machine. Have installed RC version 4. Do not have the new key required yet. Can or should I install the other versions pior to getting the new key, or do I have to get a new key now. Thanks for the advise.

depending on how recent the cd is --if it is old, install 4.0, upgrade 4.01, upgrade 4.2, upgrade 4.3 then get a keyif it is relativley new, upgrade to 4.3, then request a keyjd