Pba, I'm not sure SCALE is totally obsolete. It is an old DOS based package but it was updated to run in a windows environment a few years ago, and there is still a website for people to download updates. SCALE is part of the SAND analysis suite (which also contained NL STRESS) by Fitzroy Systems but they dont appear to have a website.
You used to be able to download SCALE for free a few years ago.
Fitzroy Computer Systems
Address : 50 Fairmile Lane, Cobham, Surrey, KT11 2DF
Country : United Kingdom
Telephone : +44 (0) 1932 865912
Fax : +44 (0) 1932 865912