basic information concerning macports + sth else

hello, I wonder how to inform macports that I have manually installed a tar.gz which is in its port-list, the tar.gz being often more recent that the version in the port-list. so my question is double: -inform macports (purpose: activate the port) -upgrade the port Also, I wonder the rule of the message variants:universal after the info command. I think this means that it is possible to download a dmg. Is it true? thank you, lolveley.