02 04 2008 - TAMPA - 20-year-old Ronnie Dickson, who is taking classes at USF and HCC, struggled with a growth-plate disorder called Trevor's disease while growing up and opted to have his left leg amputated just above his knee in the summer of 2005. Now, after teaching himself to run, Ronnie will run the 5K at the Gasparilla Distance Classic. BRIAN CASSELLA | Times