2005 ERP ESS1.0

Hi to all

Iam trying to Configure BP 2005 ERP ESS 1.0

in my EP 7.0 Environment and i have ECC 6.0 SP 3 as backend

Where can i down load this file (ESS BP) i got one .SCA file which is 3916 Kb

only one file, is it proper file or not

if not where can i find the files for ESS how many i need to download

thank you in Advance

pavan