That site is busted as hell. I was testing at a 200kbps download and 900+ upload.
Using
http://www.speakeasy.net/speedtest/ I got a more accurate download of over 9000kbps and 900 upload. Considering I pay for a 10mbps connection thats about right.
With speakeasy I have to use GA since FL isn't represented, but its still lickety split.
EDIT: Using Atlanta, GA instead of Orlando, FL ...
... conclusion ... maybe the one nearest your house isn't the best?!