Installing ZeosDBO in Delphi (rev version)

I already make some revision on my previous post about how to install ZeosDBO components in Delphi. The revision link is here. ZeosDBO is one of the direct connection components to many RDBMS including Firebird. The idea of ZeosDBO is like JDBC, and to switch from one database to another database is really easy, find it by yourself after trying this amazing components. One thing, this component is FREE and OPEN SOURCE