You can downlad the latest version from Sourceforge.
If you want to start with the NeXtprot example data make sure that you have at least 5 Gigabytes disk space available.
The following prerequisites are necessary to get started with the example data.
Installation of NeXtoR is strightforward. Just unpack the NeXtoR distribution into a directory of your choice. The remainder of this guide is assuming that you have been using NEXTOR_HOME.
Installation steps