That poll was taken before the Florida Debate. If a lot of Florida people watched the debate AND a lot liked what Ron Paul had to say then Ron Paul should improve in the poll.
Easy way to get the numbers up - grab some slimjims and canvass your precinct. It's actually a lot easier than you think and makes a huge difference on election day. I'm finding most people are pretty nice on my first venture today. Just taking a break now and then back out for another few hundred houses. Thank God it's warm and sunny in Houston though.