You might not have to catch up on a lot to be a programmer, as yaustar is saying, but of course broadening you background in mathematics can't hurt, can it? My guess is you will have to do some catching up if you have your heart set on Digipen, but only they can say for sure.
Is Digipen your only option for schooling? Are there any other schools available to you that offer courses that might help you down the path? I see you have some experience with VB.NET and C#. I saw a job listing today looking for someone with those skills and knowledge of Java and Flash to create browser based games, and they did not require a B.S. degree in Computer Science with strong math skills (as I often see). That's encouraging, no?