1) use compatible Teiid and Teiid Designer versions (7.7 Teiid + Designer 7.8) or (8.2 Teiid + 8.0 Designer)
2) Make sure all the JDBC driver files that are used by VDB data sources are installed in the JBoss AS server before the server is started.
3) Then use the Teiid Designer for deploying a VDB
and have installed JDBC driver files into jboss-as-7.1.1.Final\standalone\lib
On ways to create data sources in the AS7. It is not same as the JBoss AS 5.1. Also, once if you created data connections in the Teiid Designer for importing purposes, it should help to deploy the jar files correctly ad automatically.