DBMGUI is written in VB so it can only run on Windows platforms. DbmJui uses the Java programming language. It can run on every platform where a JVM is available.
Every version of DbmJui > 0.1.5 (only 0.1.90 for now) uses SWT. Linux/GTK2 and Win32 releases are provided. If you're running on a different platform, you need to download SWT separately from the eclipse website.
DbmJui is tested with SWT 3.x.