Please check the below link for BPC 7NW version.
As of now we have 3 existing versions of BPC.
1.BPC5.1MS Version(Old version)
2.BPC7MS version(Upgraded version for BPC5.1MS version)--Both are same as the application point of view but they have updated in some EV functionolity and some issue's.
3.BPCNW version--Which is totally SAP product bcz here your backend will be SAP-BI integration.which is still in initial stahes of working and very little customers are existing on this..
For all 3 versions the frontend side i.e application side is same but BPC7MS is backend is MSserver where as in BPCNW backend is SAPBI...
For the Data you can go to this link...
Hope this is helpfull,if you need any other help do reply..