If the wood is still green enough, I'd take a chainsaw and cut it into 1.5' sections instead of 3' lengths. Then stack them up as best you can in a way that they are off the ground and let them dry for a while (Id imaging several months. Keeping them covered as well would be best, but no ground contact is the most important to allow air circulation and prevent termites from infesting your woodstack. After the wood dries, splitting it for fireplace use should go pretty smoothly, check out an outdoors site or a Boy Scout Fieldbook for further insruction on tools and techniques.