WTP includes the RDB model and code that we use for meet in the middle
mapping and DDL generation. The 0.7 build has bugs in the MySQL support
that prevent us from using it. We have contributed fixes which are
included in the nightly build we posted on our site.
So you can use our plugins with WTP 0.7 but meet in the middle mapping
will not work and there will be some problems with DDL generation. But you
will still be able to manually enter column names on E/R diagrams and so
on and use a vendor tool to generate the schema if needed.