Microsoft certified technology specialist / MCTS cert provides the foundation for MS certs. These cert is designed to validate skills on the features and functionality of key technologies specially implementing, troubleshooting, & debugging a specific technology.
While, Microsoft certified IT professional / MCITP deals under Microsoft certified systems administrator / MCSA cert that has two kinds of: Server Administrator & Enterprise Administrator. It is based on planning and maintaining a MS windows server
2008 Network Infrastructure. This course planned for IT profs, who need to design, plan, implement & support the MS OS. Generally, it is totally based on networks.
You did not mention here, from which field you are / what kind of job you are doing now! If you wish to lean networking, so why you don’t try for CCNA.
If you wish you may look the earlier posts here.