Biztalk 2004/2006 Certifications.

Certifications allow you to prove your competitive skills across the breath of the product. Some people say "It's too theoratical, they never test your real world experience", but I feel you need to know the breath of the product to pass the exam which will help you to learn what's there in the first place.

MCTS Certification on BizTalk Server 2010

Exam 70-595: Developing E-Business Solutions Using Microsoft BizTalk Server 2010
Candidates should have a solid understanding of fundamental BizTalk concepts around the core messaging engine and building business processes using orchestrations. Candidates will have some exposure to larger-scale multi-server solutions and deployment/management familiarity. This core knowledge is required for BizTalk 2006 R2, 2009, and 2010. In addition, core knowledge of Windows Communication Foundation (WCF) and Electronic Data Interchange (EDI) is also required.