Great advice, guys. I would add to stretch your calves before and after every workout. The simplest way is to put the balls of both feet on a step or curb, then alternate hanging each heel down for a count of 15. A good stretch even if you don't have the splints. I hope they go away soon.
And I third the "stay off of concrete" advice. Run on grass if you can. It is hard work, but it actually strengthens your ankles & legs as your muscles counterbalance depressions, holes, & varying terrain.