actually answered the question of why he wasn't observing Florida. (Pardon me if someone responded already, I didn't find ut looking quickly)

Still Seeking a Fair Florida Vote

By Jimmy Carter
Monday, September 27, 2004; Page A19

The Carter Center has monitored more than 50 elections, all of them held under contentious, troubled or dangerous conditions. When I describe these activities, either in the United States or in foreign forums, the almost inevitable questions are: "Why don't you observe the election in Florida?" and "How do you explain the serious problems with elections there?"

The answer to the first question is that we can monitor only about five elections each year, and meeting crucial needs in other nations is our top priority. (Our most recent ones were in Venezuela and Indonesia, and the next will be in Mozambique.) A partial answer to the other question is that some basic international requirements for a fair election are missing in Florida.

The article says more...but it is pretty sad that Florida would be disqualified due to not meeting fair election standards.