I think that I have answered my own question via google

See http://msdn2.microsoft.com/en-us/library/ms143219.aspx

"On the Instance Name page, select a default or named instance for...

I did not install sql personally, but it sounds like maybe there was an option to install as a default instance or a named instance? Is that right?

So does 2005 only answer to server/instance? Is there a way to change that?

I am now confused. I am coming from a mysql novice background. Does sql2005 not use a static port? Is that my issue, sql is using a port based on...