One question: why on earth would Robert Byrd (in the Senate since the '50's and still there...) be Zell Miller's (in the Senate since 2000. And no longer there) V.P?
First you have the seniority problem (yes, Byrd would see it like that) and then you have the fact that Byrd has always been fairly anti-Republican, something that can't really be said for Zell at the moment.
There's also some "fairly" large ideological differences between the two... on social issues I'd guess their views are similer, but economically?
Well Zell Miller was Governor of Georgia for between 8 and 12 years before becoming Senator and was either a Senator or a Congressman before that and Lt. Gov. of Georgia.