The latest ASF SAR Training Processor can be downloaded from the ASF web site, at http://www.asf.alaska.edu. On that page, select the option to "Get SAR Tools". This page lists all of the tools currently supported by ASF, and you'll see the SAR Training Processor (STP) listed there with a link to download the tool. Before downloading, you'll be asked on which operating system you intend to run STP.
How you install the tool depends on which operating system you selected. Windows packages come with an installer, Linux packages come as an RPM, and Source packages contain source code with an autoconf-style configure script.
The Windows package contains just a single file, the installer.
To install, you just need to open up the archive file that you downloaded (double-clicking on it will open it), and then run the installer program contained within.
After installation, you will have a start-menu shortcut that you can use to run the SAR Training Processor.
After you've downloaded and extracted the archive, you need to compile the tools before they can be installed. To do this, make sure you're in the asf_tools directory, then:
./configure --prefix=[[installation location]] make make install
You will need permissions to put files into [[installation location]]! The default is /usr/local.
For example, to install the tools in "asf_tools" folder of your home directory:
./configure --prefix=~/asf_tools make make install
Alaska Satellite Facility
University of Alaska Fairbanks
P.O. Box 757320
Fairbanks, AK 99775-7320