The manual for programs Response-2000, Membrane-2000l, Triax-2000, and Shell-2000 is available here in full.
To get an idea of what the programs are able to do, it is recommended that the user look at the "quick start" section of the manual. Each program is shown there with an example that highlights its individual strengths. This "quick start" section is part 1 of 5 sections in the manual. The remainder may be accessed using the table of contents link above.