Currently the OpenMPT package is quite plain: no samples, no VSTs, no tutorial or help files and not even an example mod. Can't say it's a surprise if a newcomer has severe problems to get started. But I don't think it's a good idea to create one huge package with everything included but instead have a separate package for these. This could have samples(preferably public domain?), VSTs and example mods of different styles from small demo style modules to module using VSTs.
If I recall correctly, including VST was planned earlier as well but then faded away because no one would do the work involved.