Test versions are available for download in the snapshot ftp directory. Download links to snapshot.zip and ide full.zip can now be found on the development web page. The linux version is not yet available because some required features of freevision aren't fully implemented there so far. If you want to test the IDE, start with the latest compiler version 1.0.x for go32v2, then add the IDE into the bin directory. Now it should run.
Bug reports to the fpc-devel mailing list please.